Optical module

Abstract

The invention provides an optical module which comprises an optical receiving component, the optical receiving component comprises a first optical receiving assembly, a second optical receiving assembly, a third optical receiving assembly and a wave division assembly, and the first optical receiving assembly and the second optical receiving assembly are located on one side of the optical receiving component. The wave division assembly is arranged along the length direction of the light receiving component. An emission light signal enters an emission light incidence position of the wave division assembly and is emitted through a receiving light incidence position of the wave division assembly, and a receiving light signal comprising a first wavelength, a second wavelength and a third wavelength enters the receiving light incidence position of the wave division assembly. And the emitted light is reflected by the incident light position of the wave division assembly, then is divided into a first wavelength optical signal, a second wavelength optical signal and a third wavelength optical signal, and is emitted out of the first wavelength optical signal, the second wavelength optical signal and the third wavelength optical signal. In the invention, the wave division assembly is arranged along the length direction of the light receiving part, and the light path for transmitting the light signal and the light path for receiving the light signal coincide in the width direction of the light receiving part, so that the width size of the light receiving part is reduced.

Description

[0001] This application claims priority from application number 202410764520.3 filed with the China Patent Office on June 13, 2024, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present disclosure relates to the field of optical fiber communication technology, and in particular to an optical module. Background Art

[0003] With the development of new services and applications such as cloud computing, mobile internet, and video, the advancement of optical communication technology has become increasingly important. In optical communication technology, optical modules are tools for converting optical and electrical signals, and are key components in optical communication equipment. Furthermore, the transmission rates of optical modules are constantly increasing as optical communication technology evolves. Summary of the Invention

[0004] The present disclosure provides an optical module, which reduces the length of a light receiving component.

[0005] In some embodiments, an optical module is provided, comprising:

[0006] A light receiving component, a first end of which is connected to the optical fiber adapter, and a second end of which is connected to the light emitting component, wherein the light emitting direction of the light emitting component is toward the optical fiber adapter;

[0007] Wherein, the light receiving component includes:

[0008] a first light receiving component;

[0009] a second light receiving assembly, located on one side of the light receiving component together with the first light receiving assembly;

[0010] a third light receiving assembly, located on the other side of the light receiving component;

[0011] A wave splitting assembly, with a first end facing the optical fiber adapter and a second end facing the optical emitting component; a transmitted optical signal emitted by the optical emitting component is incident on the transmitted light input of the second end of the wave splitting assembly and emitted through the received light input of the first end of the wave splitting assembly; a received optical signal including a first wavelength, a second wavelength, and a third wavelength transmitted by the optical fiber adapter is incident on the received light input of the first end of the wave splitting assembly, is reflected by the transmitted light input of the second end of the wave splitting assembly, and is then split into a first wavelength optical signal, a second wavelength optical signal, and a third wavelength optical signal before being emitted, and the first wavelength optical signal, the second wavelength optical signal, and the third wavelength optical signal are respectively incident on corresponding optical receiving components.

[0012] The above technical solution has the following beneficial effects: The present disclosure provides an optical module comprising a fiber optic adapter, a light emitting component, and a light receiving component. The first end of the light receiving component is connected to the fiber optic adapter so that the light receiving component receives optical signals transmitted by the fiber optic adapter. The second end of the light receiving component is connected to the light emitting component, and the light emitting component's light output direction faces the fiber optic adapter so that the optical signals emitted by the light emitting component are transmitted to the fiber optic adapter via the light receiving component. The light emitting component can transmit three optical signals of different wavelengths. The light receiving component comprises a first light receiving assembly, a second light receiving assembly, and a third light receiving assembly, so that the light receiving component can receive three optical signals of different wavelengths. The first and second light receiving assemblies are located on one side of the light receiving component, and the third light receiving assembly is located on the other side of the light receiving component. The first and second light receiving assemblies are located on one side of the light receiving component, and the third light receiving assembly is located on the other side of the light receiving component to reduce the length of the light receiving component. The light receiving component also includes a wavelength splitter assembly. The first end of the wavelength splitter assembly faces the fiber optic adapter, and the second end of the wavelength splitter assembly faces the light emitting component. This allows the wavelength splitter assembly to be positioned along the length of the light receiving component, thereby reducing the width of the light receiving component. The first end of the splitter assembly has a receiving light input, and the second end of the splitter assembly has a transmitting light input. The transmitting light signal emitted by the optical transmitting component is incident on the transmitting light input of the second end of the splitter assembly and is emitted through the receiving light input of the first end of the splitter assembly. The receiving light signal including the first wavelength, the second wavelength and the third wavelength transmitted by the optical fiber adapter is incident on the receiving light input of the first end of the splitter assembly, and is reflected at the transmitting light input of the second end of the splitter assembly and then split into the first wavelength light signal, the second wavelength light signal and the third wavelength light signal before being emitted. The first wavelength light signal, the second wavelength light signal and the third wavelength light signal are respectively incident on the corresponding optical receiving assembly. The optical path of the transmitting light signal and the optical path of the receiving light signal overlap in the width direction of the optical receiving assembly to reduce the width dimension of the optical receiving assembly. In the present disclosure, the optical receiving component includes a first optical receiving component, a second optical receiving component and a third optical receiving component. The first optical receiving component and the second optical receiving component are located on one side of the optical receiving component, and the third optical receiving component is located on the other side of the optical receiving component, so as to reduce the length dimension of the optical receiving component; the wave splitting component is arranged along the length direction of the optical receiving component, and the optical path of the transmitted optical signal and the optical path of the received optical signal overlap in the width direction of the optical receiving component, so as to reduce the width dimension of the optical receiving component.

[0013] In some embodiments, an optical module is provided, wherein the first end of the wave splitting component has a first light output point, the second end of the wave splitting component has a second light output point and a third light output point, the second light receiving component is located in the light output direction of the second light output point, the first light receiving component is located in the light output direction of the first light output point, and the third light receiving component is located in the light output direction of the third light output point.

[0014] The above technical solution has the following beneficial effects: the first end of the wave splitter assembly has a first light output, and the second end of the wave splitter assembly has a second light output and a third light output, so that the first wavelength optical signal after being split by the wave splitter assembly can be emitted through the second light output, the second wavelength optical signal can be emitted through the third light output, and the third wavelength optical signal can be emitted through the first light output. The second optical receiving assembly is located in the light output direction of the second light output, so that the first wavelength optical signal is incident on the second optical receiving assembly after being emitted through the second light output. The first optical receiving assembly is located in the light output direction of the first light output, so that the third wavelength optical signal is incident on the first optical receiving assembly after being emitted through the first light output. The third optical receiving assembly is located in the light output direction of the third light output, so that the second wavelength optical signal is incident on the third optical receiving assembly after being emitted through the third light output.

[0015] In some embodiments, an optical module is provided, wherein the wave splitting assembly includes a first substrate, a first end surface of the first substrate is arranged corresponding to the first end of the light receiving component, a second end surface of the first substrate is arranged corresponding to the second end of the light receiving component, a first wave plate, a second wave plate, and a third wave plate are sequentially arranged on the first end surface of the first substrate, a fourth wave plate, a fifth wave plate, and a sixth wave plate are sequentially arranged on the second end surface of the first substrate, the first wave plate and the fourth wave plate are arranged opposite to each other, the second wave plate and the fifth wave plate are arranged opposite to each other, and the third wave plate and the sixth wave plate are arranged opposite to each other;

[0016] The transmitting optical signal emitted by the optical transmitting component is sequentially transmitted through the fourth wave plate and the first wave plate to the optical fiber adapter; the receiving optical signal transmitted by the optical fiber adapter is sequentially transmitted through the first wave plate, reflected by the fourth wave plate and the second wave plate, reflected and transmitted through the fifth wave plate, reflected by the fifth wave plate, reflected and transmitted through the third wave plate, reflected by the third wave plate, and finally transmitted through the sixth wave plate, so that the first wavelength optical signal is emitted through the fifth wave plate, the third wavelength optical signal is emitted through the third wave plate, and the second wavelength optical signal is emitted through the sixth wave plate.

[0017] The above technical solution has the following beneficial effects: a wave splitter assembly includes a first substrate, a first end surface of the first substrate being disposed corresponding to the first end of a light receiving component, and a second end surface of the first substrate being disposed corresponding to the second end of the light receiving component, such that the first substrate is disposed along the length of the light receiving component, thereby reducing the width of the light receiving component. A first wave plate, a second wave plate, and a third wave plate are sequentially disposed on the first end surface of the first substrate, and a fourth wave plate, a fifth wave plate, and a sixth wave plate are sequentially disposed on the second end surface of the first substrate. The first wave plate and the fourth wave plate are disposed opposite each other, such that a transmitted optical signal emitted by the light transmitting component passes through the fourth wave plate and enters the first wave plate, and a received optical signal transmitted by the optical fiber adapter passes through the first wave plate and enters the fourth wave plate. The second wave plate and the fifth wave plate are disposed opposite each other, with the fifth wave plate being located in the reflected optical path of the second wave plate, such that the received optical signal can be reflected by the second wave plate and then enter the fifth wave plate. The fifth wave plate can serve as a second light output port of the wave splitter assembly, such that a beam of the received optical signal can be transmitted through the fifth wave plate. The third and sixth wave plates are positioned opposite each other, with the sixth wave plate located in the reflective optical path of the third wave plate, allowing the received optical signal to be reflected by the third wave plate and then enter the sixth wave plate. The third wave plate can serve as the first light output of the wave splitter assembly, allowing one of the received optical signals to be transmitted through the third wave plate. The sixth wave plate can serve as the third light output of the wave splitter assembly, allowing one of the received optical signals to be transmitted through the sixth wave plate. The transmitted optical signal sequentially passes through the fourth and first wave plates and is transmitted to the fiber optic adapter, enabling the wave splitter assembly to transmit the transmitted optical signal. The received optical signal sequentially passes through the first wave plate, is reflected by the fourth and second wave plates, is reflected and transmitted by the fifth wave plate, is reflected by the fifth wave plate, then reflects and transmits through the third wave plate, is reflected by the third wave plate, and finally transmits through the sixth wave plate. As a result, the first wavelength optical signal is transmitted through the fifth wave plate, the third wavelength optical signal is transmitted through the third wave plate, and the second wavelength optical signal is transmitted through the sixth wave plate, thus enabling the wave splitter assembly to split the received optical signal.

[0018] In some embodiments, an optical module is provided, wherein the wave splitting assembly includes a first substrate, a first end surface of the first substrate is arranged corresponding to the first end of the light receiving component, a second end surface of the first substrate is arranged corresponding to the second end of the light receiving component, a first wave plate, a second wave plate, and a third wave plate are sequentially arranged on the first end surface of the first substrate, a fourth wave plate, a fifth wave plate, and a sixth wave plate are sequentially arranged on the second end surface of the first substrate, the first wave plate and the fourth wave plate are arranged opposite to each other, the second wave plate and the fifth wave plate are arranged opposite to each other, and the third wave plate and the sixth wave plate are arranged opposite to each other;

[0019] The transmitting optical signal emitted by the optical transmitting component is sequentially transmitted through the fourth wave plate and the first wave plate to the optical fiber adapter; the receiving optical signal transmitted by the optical fiber adapter is sequentially transmitted through the first wave plate, reflected through the fourth wave plate, reflected and transmitted through the second wave plate, reflected through the second wave plate, reflected and transmitted through the fifth wave plate, reflected through the fifth wave plate, reflected through the third wave plate, and transmitted through the sixth wave plate, so that the first wavelength optical signal is emitted through the fifth wave plate, the third wavelength optical signal is emitted through the second wave plate, and the second wavelength optical signal is emitted through the sixth wave plate.

[0020] The above technical solution has the following beneficial effects: a wave splitter assembly includes a first substrate, a first end surface of the first substrate being disposed corresponding to the first end of a light receiving component, and a second end surface of the first substrate being disposed corresponding to the second end of the light receiving component, such that the first substrate is disposed along the length of the light receiving component, thereby reducing the width of the light receiving component. A first wave plate, a second wave plate, and a third wave plate are sequentially disposed on the first end surface of the first substrate, and a fourth wave plate, a fifth wave plate, and a sixth wave plate are sequentially disposed on the second end surface of the first substrate. The first wave plate and the fourth wave plate are disposed opposite each other, such that a transmitted optical signal emitted by the light transmitting component passes through the fourth wave plate and enters the first wave plate, and a received optical signal transmitted by the optical fiber adapter passes through the first wave plate and enters the fourth wave plate. A second wave plate and a fifth wave plate are disposed opposite each other, with the fifth wave plate being located in the reflected optical path of the second wave plate, such that the received optical signal can be reflected by the second wave plate and then enter the fifth wave plate. The second wave plate can serve as the first light output of the wave splitter assembly, such that a beam of the received optical signal can be transmitted through the second wave plate. The fifth wave plate can serve as the second light output of the wave splitter assembly, allowing one of the received optical signals to be transmitted through the fifth wave plate. The third and sixth wave plates are positioned opposite each other, with the sixth wave plate located in the reflection path of the third wave plate, allowing the received optical signal to be reflected by the third wave plate and then enter the sixth wave plate. The sixth wave plate can serve as the third light output of the wave splitter assembly, allowing one of the received optical signals to be transmitted through the sixth wave plate. The transmitted optical signal sequentially passes through the fourth wave plate and the first wave plate and is transmitted to the fiber optic adapter, enabling the wave splitter assembly to transmit the transmitted optical signal. The received optical signal sequentially passes through the first wave plate, is reflected and transmitted through the fourth and second wave plates, is reflected and transmitted through the fifth wave plate, is reflected by the fifth wave plate, is reflected by the third wave plate, and finally is transmitted through the sixth wave plate. As a result, the first wavelength optical signal is transmitted through the fifth wave plate, the third wavelength optical signal is transmitted through the second wave plate, and the second wavelength optical signal is transmitted through the sixth wave plate, thus enabling the wave splitter assembly to split the received optical signal.

[0021] In some embodiments, an optical module is provided, wherein the wave splitting component includes a first substrate, a first end surface of the first substrate is arranged corresponding to the first end of the light receiving component, a second end surface of the first substrate is arranged corresponding to the second end of the light receiving component, a first wave plate, a second wave plate, a third wave plate, and a seventh wave plate are sequentially arranged on the first end surface of the first substrate, a fourth wave plate, a fifth wave plate, and a sixth wave plate are sequentially arranged on the second end surface of the first substrate, the first wave plate and the fourth wave plate are arranged opposite to each other, the second wave plate and the fifth wave plate are arranged opposite to each other, and the third wave plate and the sixth wave plate are arranged opposite to each other;

[0022] The transmitting optical signal emitted by the optical transmitting component is sequentially transmitted through the fourth wave plate and the first wave plate to the optical fiber adapter; the receiving optical signal transmitted by the optical fiber adapter is sequentially transmitted through the first wave plate, reflected through the fourth wave plate, reflected and transmitted through the second wave plate, reflected through the second wave plate, reflected through the fifth wave plate and the third wave plate, reflected and transmitted through the sixth wave plate, reflected through the sixth wave plate, and then transmitted through the seventh wave plate, so that the first wavelength optical signal is emitted through the sixth wave plate, the third wavelength optical signal is emitted through the second wave plate, and the second wavelength optical signal is emitted through the seventh wave plate.

[0023] The above technical solution has the following beneficial effects: a wave splitter assembly includes a first substrate, a first end surface of the first substrate being disposed corresponding to the first end of a light receiving component, and a second end surface of the first substrate being disposed corresponding to the second end of the light receiving component, such that the first substrate is disposed along the length of the light receiving component, thereby reducing the width of the light receiving component. A first wave plate, a second wave plate, and a third wave plate are sequentially disposed on the first end surface of the first substrate, and a fourth wave plate, a fifth wave plate, a sixth wave plate, and a seventh wave plate are sequentially disposed on the second end surface of the first substrate. The first wave plate and the fourth wave plate are disposed opposite each other, such that a transmitted optical signal emitted by the light transmitting component passes through the fourth wave plate and enters the first wave plate, and a received optical signal transmitted by the optical fiber adapter passes through the first wave plate and enters the fourth wave plate. A second wave plate and a fifth wave plate are disposed opposite each other, with the fifth wave plate being located in the reflected optical path of the second wave plate, such that the received optical signal can be reflected by the second wave plate and then enter the fifth wave plate. The second wave plate can serve as the first light output of the wave splitter assembly, such that a beam of the received optical signal can be transmitted through the second wave plate. The sixth wave plate can serve as the second light output of the wave splitter assembly, allowing one of the received light signals to be transmitted through the sixth wave plate. The third and sixth wave plates are positioned opposite each other, with the sixth wave plate located in the reflected light path of the third wave plate, allowing the received light signal to be reflected by the third wave plate and then enter the sixth wave plate. The seventh wave plate is located in the reflected light path of the sixth wave plate, allowing the received light signal to be reflected by the sixth wave plate and then enter the seventh wave plate. The seventh wave plate can serve as the third light output of the wave splitter assembly, allowing one of the received light signals to be transmitted through the seventh wave plate. The transmitted light signal is sequentially transmitted through the fourth and first wave plates to the fiber optic adapter, enabling the wave splitter assembly to transmit the transmitted light signal. The received optical signal is sequentially transmitted through the first wave plate, reflected through the fourth wave plate, reflected and transmitted through the second wave plate, reflected through the fifth wave plate and the third wave plate after being reflected through the second wave plate, reflected and transmitted through the sixth wave plate, and then transmitted through the seventh wave plate after being reflected through the sixth wave plate, so that the first wavelength optical signal is emitted through the sixth wave plate, the third wavelength optical signal is emitted through the second wave plate, and the second wavelength optical signal is emitted through the seventh wave plate, thereby enabling the wave splitting component to realize beam splitting of the received optical signal.

[0024] In some embodiments, an optical module is provided, wherein the optical emitting component includes:

[0025] a first optical emitting assembly, the light emitting direction of which is toward the optical fiber adapter;

[0026] a second light emitting assembly;

[0027] A third light emitting assembly is located on a different side wall of the light emitting component than the first light emitting assembly; the side wall where the third light emitting assembly is located is connected to the side wall where the first light emitting assembly is located;

[0028] The second light emitting component and the first light emitting component are located on the same side wall of the light emitting component, or the second light emitting component and the first light emitting component are located on different side walls of the light emitting component, and the side wall where the second light emitting component is located is connected to the side wall where the first light emitting component is located.

[0029] The above technical solution has the following beneficial effects: the optical emission component includes a first optical emission component, a second optical emission component, and a third optical emission component, and the first optical emission component, the second optical emission component, and the third optical emission component can emit three optical signals of different wavelengths. The third optical emission component and the first optical emission component are located on different side walls of the optical emission component, and the side wall where the third optical emission component is located is connected to the side wall where the first optical emission component is located. The light emitting direction of the first optical emission component is toward the optical fiber adapter, so that the light emitting direction of the third optical emission component is not toward the optical fiber adapter. The second optical emission component and the first optical emission component are located on the same side wall of the optical emission component, so that the light emitting direction of the second optical emission component and the light emitting direction of the first optical emission component are both toward the optical fiber adapter. Alternatively, the second optical emission component and the first optical emission component are located on different side walls of the optical emission component, and the side wall where the second optical emission component is located is connected to the side wall where the first optical emission component is located, so that the light emitting direction of the second optical emission component is not toward the optical fiber adapter.

[0030] In some embodiments, an optical module is provided, wherein the light receiving component further comprises:

[0031] The first reflector is located in the transmission direction of the first wavelength optical signal emitted by the wave splitting component; the second optical receiving component is located in the reflected light path of the first reflector;

[0032] The second reflector is located in the transmission direction of the third wavelength optical signal emitted by the wave splitting component; the first optical receiving component is located in the reflected light path of the second reflector;

[0033] The third reflector is located in the transmission direction of the second wavelength optical signal emitted by the wave splitting component; the third optical receiving component is located on the reflected light path of the third reflector.

[0034] The above technical solution has the following beneficial effects: the optical receiving component also includes a first reflector. The first reflector is located in the transmission direction of the first wavelength optical signal emitted by the splitter assembly, so that the third wavelength optical signal is reflected by the second reflector. The second optical receiving assembly is located in the reflected light path of the first reflector, so that the second optical receiving assembly can receive the first wavelength optical signal reflected by the first reflector. The optical receiving component also includes a second reflector, which is located in the transmission direction of the third wavelength optical signal emitted by the splitter assembly, so that the third wavelength optical signal is reflected by the second reflector. The first optical receiving assembly is located in the reflected light path of the second reflector, so that the first optical receiving assembly can receive the third wavelength optical signal reflected by the second reflector. The optical receiving component also includes a third reflector, which is located in the transmission direction of the second wavelength optical signal emitted by the splitter assembly, so that the second wavelength optical signal is reflected by the third reflector. The third optical receiving assembly is located in the reflected light path of the third reflector, so that the third optical receiving assembly can receive the second wavelength optical signal reflected by the third reflector.

[0035] In some embodiments, an optical module is provided, comprising:

[0036] The light receiving components include:

[0037] The first housing includes a bottom plate, and a first side wall, a second side wall, a third side wall, and a fourth side wall connected in sequence, wherein the bottom plate is connected to the first side wall, the second side wall, the third side wall, and the fourth side wall in sequence, respectively; the first side wall is connected to the optical fiber adapter, and the third side wall is connected to the light emitting component;

[0038] a first cover plate, covering the first shell;

[0039] a first light receiving component;

[0040] A second light receiving assembly and the first light receiving assembly are both connected to the second side wall;

[0041] a third light receiving assembly connected to the fourth side wall;

[0042] The wave splitting assembly is arranged along the length direction of the second side wall so that the wave splitting assembly is arranged along the length direction of the first shell; the transmitted light signal emitted by the optical emitting component is incident on the transmitted light input of the second end of the wave splitting assembly and is emitted through the received light input of the first end of the wave splitting assembly; the received light signal including the first wavelength, the second wavelength and the third wavelength transmitted by the optical fiber adapter is incident on the received light input of the first end of the wave splitting assembly, is reflected by the transmitted light input of the second end of the wave splitting assembly, and is then split into the first wavelength light signal, the second wavelength light signal and the third wavelength light signal and then emitted, and the first wavelength light signal, the second wavelength light signal and the third wavelength light signal are respectively incident on the corresponding optical receiving assembly.

[0043] The above technical solution has the following beneficial effects: The present disclosure provides an optical module comprising a fiber optic adapter, a light emitting component, and a light receiving component. The first end of the light receiving component is connected to the fiber optic adapter so that the light receiving component receives optical signals transmitted by the fiber optic adapter. The second end of the light receiving component is connected to the light emitting component, and the light emitting component's light output direction faces the fiber optic adapter so that the optical signals emitted by the light emitting component are transmitted to the fiber optic adapter via the light receiving component. The light emitting component can transmit three optical signals of different wavelengths. The light receiving component comprises a first light receiving assembly and a fourth light receiving assembly. The fourth light receiving assembly comprises a first light receiving chip and a second light receiving chip. The first and second light receiving chips receive optical signals of different wavelengths, so that the fourth light receiving assembly can receive two optical signals of different wavelengths. The light receiving component also comprises a wavelength splitter assembly. The first end of the wavelength splitter assembly faces the fiber optic adapter, and the second end of the wavelength splitter assembly faces the light emitting component. This allows the wavelength splitter assembly to be positioned along the length of the light receiving component, thereby reducing the width of the light receiving component. The first and fourth light receiving assemblies are located at either end of the wavelength splitter assembly, respectively, so that the optical signals emitted by the wavelength splitter assembly can be incident on the corresponding light receiving assembly. The first end of the splitter assembly has a receiving light input, and the second end of the splitter assembly has a transmitting light input. The transmitting light signal emitted by the optical transmitting component is incident on the transmitting light input of the second end of the splitter assembly and is emitted through the receiving light input of the first end of the splitter assembly. The receiving light signal including the first wavelength, the second wavelength and the third wavelength transmitted by the optical fiber adapter is incident on the receiving light input of the first end of the splitter assembly, and is reflected at the transmitting light input of the second end of the splitter assembly and then split into the first wavelength light signal, the second wavelength light signal and the third wavelength light signal before being emitted. The first wavelength light signal, the second wavelength light signal and the third wavelength light signal are respectively incident on the corresponding optical receiving assembly. The optical path of the transmitting light signal and the optical path of the receiving light signal overlap in the width direction of the optical receiving assembly to reduce the width dimension of the optical receiving assembly. In the present disclosure, the optical receiving component includes a first optical receiving component and a third optical receiving component, and the first optical receiving component and the fourth optical receiving component are respectively located at the two ends of the demultiplexing component so that the optical signal emitted by the demultiplexing component can be incident on the corresponding optical receiving component; the demultiplexing component is arranged along the length direction of the optical receiving component, and the optical path of the transmitted optical signal and the optical path of the received optical signal overlap in the width direction of the optical receiving component to reduce the width size of the optical receiving component.

[0044] In some embodiments, an optical module is provided, wherein the light receiving component further comprises:

[0045] The second reflector is located in the transmission direction of the third wavelength optical signal emitted by the wave splitting component; the first optical receiving component is located in the reflected light path of the second reflector;

[0046] The fourth reflector is located in the transmission direction of the first wavelength optical signal and the second wavelength optical signal emitted by the wave splitter assembly; the fourth optical receiving assembly can be located on the reflected light path of the fourth reflector.

[0047] The above technical solution has the following beneficial effects: the optical receiving component further includes a second reflector, which is located in the transmission direction of the third wavelength optical signal emitted by the wave splitter assembly, so that the second reflector reflects the third wavelength optical signal. The first optical receiving assembly is located in the reflected light path of the second reflector, so that the first optical receiving assembly can receive the third wavelength optical signal reflected by the second reflector. The optical receiving component further includes a fourth reflector, which is located in the transmission direction of the first wavelength optical signal and the second wavelength optical signal emitted by the wave splitter assembly, so that the fourth reflector reflects the first wavelength optical signal and the second wavelength optical signal. The fourth optical receiving assembly can be located in the reflected light path of the fourth reflector, so that the fourth optical receiving assembly can receive the first wavelength optical signal and the second wavelength optical signal reflected by the fourth reflector.

[0048] In some embodiments, an optical module is provided, wherein the first light receiving component and the fourth light receiving component are located on the same side of the light receiving component, the first light receiving component is farther away from the light emitting component than the fourth light receiving component, and the first light receiving chip is closer to the light emitting component than the second light receiving chip;

[0049] or,

[0050] The first light receiving component and the fourth light receiving component are located on different sides of the light receiving component. The first light receiving component is farther away from the light emitting component than the fourth light receiving component, and the second light receiving chip is closer to the light emitting component than the first light receiving chip.

[0051] The above technical solution has the following beneficial effects: the first and fourth light receiving components are located on the same side of the light receiving component, which can reduce the width of the light receiving component. The first light receiving component is farther away from the light emitting component than the fourth light receiving component, and the first light receiving chip is closer to the light emitting component than the second light receiving chip, so that the first and second light receiving chips can receive optical signals of corresponding wavelengths.

[0052] Alternatively, the first light receiving assembly and the fourth light receiving assembly are located on different sides of the light receiving component, thereby reducing the length of the light receiving component. The first light receiving assembly is farther away from the light emitting component than the fourth light receiving assembly, and the second light receiving chip is closer to the light emitting component than the first light receiving chip, so that the first light receiving chip and the second light receiving chip can receive optical signals of corresponding wavelengths.

[0053] In some embodiments, an optical module is provided, comprising:

[0054] The light receiving components include:

[0055] The first housing comprises a bottom plate, and a first side wall, a second side wall, a third side wall, and a fourth side wall connected in sequence, wherein the bottom plate is connected to the first side wall, the second side wall, the third side wall, and the fourth side wall in sequence respectively; the first side wall is connected to the optical fiber adapter, and the third side wall is connected to the light emitting component;

[0056] a first cover plate, covering the first shell;

[0057] a first light receiving component;

[0058] A second light receiving assembly and the first light receiving assembly are both connected to the second side wall;

[0059] a third light receiving assembly connected to the fourth side wall;

[0060] A wave splitting assembly is arranged along the length direction of the second side wall so that the wave splitting assembly is arranged along the length direction of the first shell; the transmitted light signal emitted by the optical emitting component is incident on the transmitted light input of the second end of the wave splitting assembly and is emitted through the received light input of the first end of the wave splitting assembly; the received light signal including the first wavelength, the second wavelength and the third wavelength transmitted by the optical fiber adapter is incident on the received light input of the first end of the wave splitting assembly, is reflected by the transmitted light input of the second end of the wave splitting assembly, and is then split into the first wavelength light signal, the second wavelength light signal and the third wavelength light signal and then emitted, and the first wavelength light signal, the second wavelength light signal and the third wavelength light signal are respectively incident on the corresponding optical receiving assembly.

[0061] The above technical solution has the following beneficial effects: The present disclosure provides an optical module, wherein the optical receiving component includes a first shell, a first optical receiving assembly, a second optical receiving assembly and a third optical receiving assembly, the first shell includes a bottom plate, and a first side wall, a second side wall, a third side wall and a fourth side wall connected in sequence, the first side wall is connected to the optical fiber adapter, the third side wall is connected to the optical emitting component, so that the optical fiber adapter and the optical emitting component are respectively connected to the optical receiving component. The light emitting direction of the optical emitting component is toward the optical fiber adapter, so that the optical emission signal emitted by the optical emitting component can be transmitted to the optical fiber adapter via the optical receiving component. The second side wall is respectively connected to the first optical receiving assembly and the second optical receiving assembly, and the fourth side wall is connected to the third optical receiving assembly. Compared with the three optical receiving assemblies being located on the same side wall of the first shell, the length dimension of the first shell can be reduced. The optical receiving component also includes a first cover plate, which covers the first housing to form a first cavity. A wave splitter assembly is disposed within the first cavity. The first end of the wave splitter assembly is disposed correspondingly to the first end of the optical receiving component, and the second end of the wave splitter assembly is disposed correspondingly to the second end of the optical receiving component, so that the wave splitter assembly is disposed along the length of the optical receiving component, thereby reducing the width of the optical receiving component. The first end of the wave splitter assembly has a receiving light input, and the second end of the wave splitter assembly has a transmitting light input. The transmitted light signal emitted by the optical transmitting component is incident on the transmitting light input of the second end of the wave splitter assembly and is emitted through the receiving light input of the first end of the wave splitter assembly. The received light signal, including the first wavelength, the second wavelength, and the third wavelength, transmitted by the optical fiber adapter is incident on the receiving light input of the first end of the wave splitter assembly. The transmitted light signal is reflected from the transmitting light input of the second end of the wave splitter assembly and then split into the first wavelength optical signal, the second wavelength optical signal, and the third wavelength optical signal before being emitted. The first wavelength optical signal, the second wavelength optical signal, and the third wavelength optical signal are respectively incident on the corresponding optical receiving component. The optical path for transmitting the optical signal and the optical path for receiving the optical signal overlap in the width direction of the optical receiving component, thereby reducing the width dimension of the optical receiving component. In the present disclosure, the optical receiving component includes a first optical receiving assembly, a second optical receiving assembly, and a third optical receiving assembly. The first and second optical receiving assemblies are located on one side of the optical receiving component, and the third optical receiving assembly is located on the other side of the optical receiving component, thereby reducing the length dimension of the optical receiving component. The wave splitting assembly is arranged along the length direction of the optical receiving component, and the optical path for transmitting the optical signal and the optical path for receiving the optical signal overlap in the width direction of the optical receiving component, thereby reducing the width dimension of the optical receiving component.

[0062] In some embodiments, an optical module is provided, wherein the first side wall has a first connection hole, the third side wall has a second connection hole, the second side wall has a fourth connection hole and a fifth connection hole, the fourth side wall has a third connection hole, the third connection hole is connected to the third light receiving component, the fourth connection hole is connected to the second light receiving component, and the fifth connection hole is connected to the first light receiving component;

[0063] The first connecting hole, the second connecting hole, the third connecting hole, the fourth connecting hole and the fifth connecting hole are respectively connected to the accommodating cavity of the first shell. A first lens is provided in the accommodating cavity. The first lens is located between the first connecting hole and the wave splitting component.

[0064] The above technical solution has the following beneficial effects: the first side wall has a first connection hole, which is connected to the optical fiber adapter; the third side wall has a second connection hole, which is connected to the optical emitting component; the second side wall has a fourth connection hole and a fifth connection hole, the fourth side wall has a third connection hole, which is connected to the third optical receiving component; the fourth connection hole is connected to the second optical receiving component; and the fifth connection hole is connected to the first optical receiving component, so that all three optical receiving components are connected to the first housing. The first connection hole, the second connection hole, the third connection hole, the fourth connection hole, and the fifth connection hole are respectively connected to the accommodating cavity of the first housing, so that the optical fiber adapter can receive the transmitted optical signal in the accommodating cavity, the accommodating cavity can receive the received optical signal transmitted by the optical fiber adapter and the transmitted optical signal emitted by the optical emitting component, and the three optical receiving components can receive the received optical signal in the accommodating cavity. A first lens is provided in the accommodating cavity, and the first lens is located between the first connection hole and the wave splitting component to facilitate active coupling of the first lens. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0066] Figure 1 is a partial structural diagram of an optical communication system provided according to some embodiments;

[0067] Figure 2 A partial structural diagram of a host computer provided according to some embodiments;

[0068] Figure 3 is a structural diagram of an optical module provided according to some embodiments;

[0069] Figure 4 An exploded view of an optical module according to some embodiments;

[0070] Figure 5a A partial diagram of the internal structure of an optical module provided according to some embodiments;

[0071] Figure 5bA partially exploded view of the internal structure of an optical module according to some embodiments;

[0072] Figure 6 A portion of a light receiving component provided according to some embodiments Figure 1 ;

[0073] Figure 7a A portion of a light receiving component provided according to some embodiments Figure 2 ;

[0074] Figure 7b is a partial cross-sectional view of a light receiving component provided according to some embodiments;

[0075] Figure 7c A partially exploded view of a light receiving component according to some embodiments;

[0076] Figure 8a A structural diagram of a stent provided according to some embodiments;

[0077] Figure 8b A structural diagram of a bracket provided in accordance with some embodiments from another perspective;

[0078] Figure 9a is an exploded view of a first cavity provided according to some embodiments;

[0079] Figure 9b is a partial exploded view of a first cavity provided according to some embodiments;

[0080] Figure 10 A partial optical path diagram of a first light receiving component provided according to some embodiments;

[0081] Figure 11a is a structural diagram of a first housing provided according to some embodiments;

[0082] Figure 11b is a structural diagram of a first housing provided in another perspective according to some embodiments;

[0083] Figure 11c is a cross-sectional view of a first housing provided according to some embodiments;

[0084] Figure 12a A light path diagram of a first light receiving component provided according to some embodiments;

[0085] Figure 12b is a cross-sectional view of a first light receiving component provided according to some embodiments;

[0086] Figure 13a A partial optical path diagram of a second light receiving component provided according to some embodiments;

[0087] Figure 13b A partial optical path diagram of a third light receiving component provided according to some embodiments;

[0088] Figure 13c A partial optical path diagram of a fourth light receiving component provided according to some embodiments;

[0089] Figure 13d A partial optical path diagram of a fifth light receiving component provided according to some embodiments;

[0090] Figure 13e A partial optical path diagram of a sixth light receiving component provided according to some embodiments;

[0091] Figure 13f A partial optical path diagram of a seventh light receiving component provided according to some embodiments;

[0092] Figure 14a A structural diagram of a first light emitting component provided according to some embodiments;

[0093] Figure 14b A structural diagram of a first light emitting component provided in accordance with some embodiments at another viewing angle;

[0094] Figure 14c An exploded view of a first light emitting component provided according to some embodiments;

[0095] Figure 14d A light path diagram of a first light emitting component provided according to some embodiments;

[0096] Figure 15a is a structural diagram of a second light emitting component provided according to some embodiments;

[0097] Figure 15b Decomposition of the second light emitting component according to some embodiments Figure 1 ;

[0098] Figure 15c Decomposition of the second light emitting component according to some embodiments Figure 2 ;

[0099] Figure 16a A partially exploded view of a second light emitting component provided according to some embodiments;

[0100] Figure 16b is a partial cross-sectional view of a second light emitting component provided according to some embodiments;

[0101] Figure 17 A light path diagram of a second light emitting component provided according to some embodiments;

[0102] Figure 18 A light path diagram of a third light emitting component provided according to some embodiments;

[0103] Figure 19a A light path diagram of a first optical module provided according to some embodiments;

[0104] Figure 19b A light path diagram of a second optical module provided according to some embodiments;

[0105] Figure 19c This is a light path diagram of a third optical module provided according to some embodiments;

[0106] Figure 20a This is a light path diagram of a fourth optical module provided according to some embodiments;

[0107] Figure 20b This is a light path diagram of a fifth optical module provided according to some embodiments;

[0108] Figure 20c This is a light path diagram of a fourth optical module provided according to some embodiments;

[0109] Figure 21a This is a light path diagram of a seventh optical module provided according to some embodiments;

[0110] Figure 21b This is a light path diagram of an eighth optical module provided according to some embodiments;

[0111] Figure 21c This is a light path diagram of a ninth optical module provided according to some embodiments;

[0112] Figure 22a A light path diagram of a tenth optical module provided according to some embodiments;

[0113] Figure 22b A light path diagram of an eleventh optical module provided according to some embodiments;

[0114] Figure 22c A light path diagram of a twelfth optical module provided according to some embodiments;

[0115] Figure 23a This is a light path diagram of a thirteenth optical module provided according to some embodiments;

[0116] Figure 23b This is a light path diagram of a fourteenth optical module provided according to some embodiments;

[0117] Figure 23c A light path diagram of a fifteenth optical module provided according to some embodiments;

[0118] Figure 24a A light path diagram of a sixteenth optical module provided according to some embodiments;

[0119] Figure 24b A light path diagram of a seventeenth optical module provided according to some embodiments;

[0120] Figure 24c This is a light path diagram of an eighteenth optical module provided according to some embodiments;

[0121] Figure 25a A light path diagram of a nineteenth optical module provided according to some embodiments;

[0122] Figure 25b This is a light path diagram of a twentieth optical module provided according to some embodiments;

[0123] Figure 25c This is a light path diagram of a twenty-first optical module provided according to some embodiments. DETAILED DESCRIPTION

[0124] Some embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. However, the embodiments described are only some of the embodiments of the present disclosure, not all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments provided in the present disclosure are within the scope of protection of the present disclosure.

[0125] Unless the context requires otherwise, throughout the specification and claims, the term "including" is to be interpreted as open and inclusive, that is, "including, but not limited to"; the terms "first" and "second" are not to be understood as indicating or implying relative importance or indicating an upper limit on quantity; the term "plurality" means two or more; the term "connected" is to be understood in a broad sense, for example, "connected" can be a fixed connection, a detachable connection, or an integral connection, and can be directly connected or indirectly connected through an intermediate medium; the use of the terms "suitable for" or "configured to" means open and inclusive language, which does not exclude equipment that is suitable for or configured to perform additional tasks or steps; terms such as "parallel", "perpendicular", "same", "consistent", "level" and so on are not limited to absolute mathematical theoretical relationships, but also include acceptable error ranges generated in practice, and also include differences based on the same design concept but due to manufacturing reasons.

[0126] In optical communication technology, to establish information transmission between information processing devices, it is necessary to load the information onto light and use the propagation of light to achieve information transmission. Here, the light loaded with information is an optical signal. When transmitting optical signals within information transmission equipment, they can reduce optical power loss, thereby enabling high-speed, long-distance, and low-cost information transmission. The signals that information processing equipment can recognize and process are electrical signals. Information processing equipment typically includes optical network units (ONUs), gateways, routers, switches, mobile phones, computers, servers, tablets, televisions, etc., and information transmission equipment typically includes optical fibers and optical waveguides.

[0127] Optical modules can convert optical signals into electrical signals between information processing devices and information transmission devices. For example, at least one of the optical signal input or output ends of an optical module is connected to an optical fiber, and at least one of the electrical signal input or output ends of the optical module is connected to an optical network terminal. A first optical signal from the optical fiber is transmitted to the optical module, which converts the first optical signal into a first electrical signal and transmits the first electrical signal to the optical network terminal. A second electrical signal from the optical network terminal is transmitted to the optical module, which converts the second electrical signal into a second optical signal and transmits the second optical signal to the optical fiber. Because multiple information processing devices can transmit information via electrical signals, at least one of the multiple information processing devices needs to be directly connected to the optical module, rather than all of them. Here, the information processing device directly connected to the optical module is referred to as the optical module's host computer. Furthermore, the optical signal input or output end of the optical module can be referred to as an optical port, and the electrical signal input or output end of the optical module can be referred to as an electrical port.

[0128] Figure 1 FIG. 1 is a partial structural diagram of an optical communication system according to some embodiments. Figure 1 As shown, the optical communication system mainly includes a remote information processing device 1000 , a local information processing device 2000 , a host computer 100 , an optical module 200 , an optical fiber 101 and a network cable 103 .

[0129] One end of optical fiber 101 extends toward remote information processing device 1000, and the other end of optical fiber 101 is connected to optical module 200 through the optical port of optical module 200. Optical signals can be totally reflected in optical fiber 101, and the propagation of the optical signal in the direction of total reflection can almost maintain the original optical power. The optical signal undergoes multiple total reflections in optical fiber 101 to transmit the optical signal from remote information processing device 1000 to optical module 200, and vice versa, thereby achieving long-distance, low-power information transmission.

[0130] The optical communication system may include one or more optical fibers 101, and the optical fibers 101 may be detachably connected or fixedly connected to the optical module 200. The host computer 100 is configured to provide data signals to the optical module 200, receive data signals from the optical module 200, or monitor or control the operating status of the optical module 200.

[0131] The host computer 100 includes a substantially rectangular housing and an optical module connection hole 102 provided on the housing. The optical module connection hole 102 is configured to connect to the optical module 200 to establish a unidirectional or bidirectional electrical signal connection between the host computer 100 and the optical module 200.

[0132] The host computer 100 also includes an external electrical connection port that can be connected to an electrical signal network. For example, the external electrical connection port includes a Universal Serial Bus (USB) connection port or a network cable connection port 104. The network cable connection port 104 is configured to connect to a network cable 103 to establish a unidirectional or bidirectional electrical signal connection between the host computer 100 and the network cable 103. One end of the network cable 103 is connected to the local information processing device 2000, and the other end of the network cable 103 is connected to the host computer 100, so that an electrical signal connection is established between the local information processing device 2000 and the host computer 100 via the network cable 103. For example, a third electrical signal emitted by the local information processing device 2000 is transmitted to the host computer 100 via the network cable 103. The host computer 100 generates a second electrical signal based on the third electrical signal. The second electrical signal from the host computer 100 is transmitted to the optical module 200. The optical module 200 converts the second electrical signal into a second optical signal and transmits the second optical signal to the optical fiber 101. The second optical signal is then transmitted to the remote information processing device 1000 via the optical fiber 101. For example, a first optical signal from the remote information processing device 1000 is transmitted through the optical fiber 101. The first optical signal from the optical fiber 101 is transmitted to the optical module 200. The optical module 200 converts the first optical signal into a first electrical signal. The optical module 200 transmits the first electrical signal to the host computer 100. The host computer 100 generates a fourth electrical signal based on the first electrical signal and transmits the fourth electrical signal to the local information processing device 2000. It should be noted that optical modules are tools for converting optical signals into electrical signals. During this conversion process, the information does not change, but the encoding and decoding methods of the information can change.

[0133] In addition to the optical network terminal, the host computer 100 also includes an optical line terminal (OLT), an optical network device (ONT), or a data center server.

[0134] Figure 2 FIG1 is a partial structural diagram of a host computer according to some embodiments. In order to clearly show the connection relationship between the optical module 200 and the host computer 100, Figure 2 Only the structure of the host computer 100 related to the optical module 200 is shown. Figure 2 As shown, the host computer 100 further includes a PCB 105 disposed within the housing, a cage 106 disposed on the surface of the PCB 105, a heat sink 107 disposed on the cage 106, and an electrical connector disposed within the cage 106. The electrical connector is configured to connect to the electrical port of the optical module 200; the heat sink 107 has protruding structures such as fins to increase the heat dissipation area.

[0135] The optical module 200 is inserted into the cage 106 of the host computer 100. The cage 106 secures the optical module 200. Heat generated by the optical module 200 is transferred to the cage 106 and then dissipated through the heat sink 107. After the optical module 200 is inserted into the cage 106, the electrical port of the optical module 200 connects with the electrical connector inside the cage 106, thereby establishing a bidirectional electrical signal connection between the optical module 200 and the host computer 100. Furthermore, the optical port of the optical module 200 connects to the optical fiber 101, thereby establishing a bidirectional optical signal connection between the optical module 200 and the optical fiber 101.

[0136] Figure 3 is a structural diagram of an optical module provided according to some embodiments. Figure 4 FIG1 is an exploded view of an optical module according to some embodiments. Figure 3 and Figure 4 As shown, the optical module 200 includes a housing, a circuit board 300 disposed in the housing, a light emitting component 400, and a light receiving component 500. However, the present disclosure is not limited thereto. In some embodiments, the optical module 200 includes one of the light emitting component 400 and the light receiving component 500.

[0137] The housing includes an upper housing 201 and a lower housing 202 . The upper housing 201 covers the lower housing 202 to form the housing having two openings 204 and 205 . The outer contour of the housing is generally a square.

[0138] In some embodiments, the lower shell 202 includes a base plate 2021 and two lower side plates 2022 located on both sides of the base plate 2021 and arranged perpendicular to the base plate 2021; the upper shell 201 includes a cover plate 2011, and the cover plate 2011 covers the two lower side plates 2022 of the lower shell 202 to form the above-mentioned shell.

[0139] In some embodiments, the lower shell 202 includes a base plate 2021 and two lower side plates 2022 located on both sides of the base plate 2021 and arranged perpendicularly to the base plate 2021; the upper shell 201 includes a cover plate 2011 and two upper side plates located on both sides of the cover plate 2011 and arranged perpendicularly to the cover plate 2011. The two upper side plates are combined with the two lower side plates 2022 to achieve the upper shell 201 covering the lower shell 202.

[0140] The direction of the line connecting the two openings 204 and 205 may be consistent with the length direction of the optical module 200, or may be inconsistent with the length direction of the optical module 200. For example, the opening 204 is located at the end of the optical module 200 ( Figure 3 The opening 205 is also located at the end of the optical module 200 ( Figure 3 Alternatively, opening 204 is located at the end of optical module 200, while opening 205 is located on the side of optical module 200. Opening 204 is an electrical port, through which the gold fingers of circuit board 300 extend and are inserted into the electrical connector of host computer 100; opening 205 is an optical port, configured to receive an external optical fiber 101, thereby connecting optical fiber 101 to the light emitting component 400 and the light receiving component 500 in optical module 200.

[0141] The combined assembly of the upper housing 201 and the lower housing 202 facilitates the installation of the circuit board 300, the light emitting component 400, and the light receiving component 500 within the housing. The upper housing 201 and the lower housing 202 provide encapsulation and protection for these components. Furthermore, during assembly of the circuit board 300, the light emitting component 400, and the light receiving component 500, the positioning components, heat dissipation components, and electromagnetic shielding components of these components are easily positioned, facilitating automated production.

[0142] In some embodiments, the upper shell 201 and the lower shell 202 are made of metal materials, which facilitates electromagnetic shielding and heat dissipation.

[0143] In some embodiments, the optical module 200 further includes an unlocking component 600 located outside its housing. The unlocking component 600 is configured to achieve a fixed connection between the optical module 200 and the host computer, or to release the fixed connection between the optical module 200 and the host computer.

[0144] For example, the unlocking component 600 is located on the outside of the two lower side panels 2022 of the lower housing 202 and includes a snap-fit ​​component that mates with the cage 106 of the host computer 100. When the optical module 200 is inserted into the cage 106, the snap-fit ​​component of the unlocking component 600 secures the optical module 200 in the cage 106. When the unlocking component 600 is pulled, the snap-fit ​​component of the unlocking component 600 moves accordingly, thereby changing the connection between the snap-fit ​​component and the host computer, thereby releasing the optical module 200 from the cage 106 and allowing the optical module 200 to be removed from the cage 106.

[0145] The circuit board 300 includes circuit traces, electronic components, and chips. The electronic components and chips are connected according to the circuit design through the circuit traces to achieve functions such as power supply, electrical signal transmission, and grounding. Electronic components may include, for example, capacitors, resistors, transistors, and metal-oxide-semiconductor field-effect transistors (MOSFETs). Chips may include, for example, microcontroller units (MCUs), laser driver chips, transimpedance amplifiers (TIAs), limiting amplifiers (LIAs), clock and data recovery chips (CDRs), power management chips, and digital signal processing (DSP) chips.

[0146] The circuit board 300 is generally a rigid circuit board. Due to its relatively hard material, the rigid circuit board can also realize the load-bearing function. For example, the rigid circuit board can stably carry the above-mentioned electronic components and chips; the rigid circuit board can also be inserted into the electrical connector in the cage 106 of the host computer 100.

[0147] The circuit board 300 also includes a gold finger formed on its end surface. The gold finger is composed of a plurality of independent pins. The circuit board 300 is inserted into the cage 106, and the gold finger is connected to the electrical connector in the cage 106. The gold finger can be provided on the surface of only one side of the circuit board 300 (for example, Figure 4 The gold fingers are configured to establish an electrical connection with the host computer to facilitate power supply, grounding, two-wire synchronous serial (I2C) signal transmission, and data signal transmission. Of course, some optical modules also use flexible circuit boards. These are generally used in conjunction with rigid circuit boards to supplement them.

[0148] At least one of the light emitting component 400 or the light receiving component 500 is located on a side of the circuit board 300 away from the gold finger.

[0149] In some embodiments, the light emitting component 400 and the light receiving component 500 are physically separated from the circuit board 300 and then electrically connected to the circuit board 300 through corresponding flexible circuit boards or electrical connectors.

[0150] In some embodiments, at least one of the light emitting component 400 or the light receiving component 500 may be directly disposed on the circuit board 300. For example, at least one of the light emitting component 400 or the light receiving component 500 may be disposed on a surface of the circuit board 300 or a side of the circuit board 300.

[0151] The optical emitting component and the optical receiving component constitute the optical transceiver component, which is electrically connected to the circuit board 300. The optical emitting component is the transmitting end of the optical transceiver component, and the optical receiving component is the receiving end of the optical transceiver component. Both the transmitting end and the receiving end of the optical transceiver component are electrically connected to the circuit board 300.

[0152] In some embodiments, one end of the light receiving component 500 can be connected to the light emitting component 400. For example, the light input end of the light receiving component 500 can be connected to the light output end of the light emitting component 400.

[0153] In some embodiments, the optical receiving component 500 can receive optical signals having multiple wavelengths. For example, the optical receiving component 500 receives optical signals having three wavelengths, each having different rates, such as a first wavelength optical signal, a second wavelength optical signal, and a third wavelength optical signal having different rates. The first wavelength optical signal includes a first wavelength optical signal, the second wavelength optical signal includes a second wavelength optical signal, and the third wavelength optical signal includes a third wavelength optical signal.

[0154] In some embodiments, the wavelength range of the first wavelength optical signal may be 1284-1288 nm, or 1290-1330 nm, or 1260-1280 nm. For example, the wavelength range of the first wavelength optical signal is 1284-1288 nm, such as the wavelength of the first wavelength optical signal is 1286 nm.

[0155] In some embodiments, the wavelength range of the second wavelength optical signal may be 1284-1288 nm, or 1290-1330 nm, or 1260-1280 nm. For example, the wavelength range of the second wavelength optical signal is 1290-1330 nm, such as the wavelength of the second wavelength optical signal is 1310 nm.

[0156] In some embodiments, the wavelength range of the third wavelength optical signal may be 1284-1288 nm, or 1290-1330 nm, or 1260-1280 nm. For example, the wavelength range of the third wavelength optical signal is 1260-1280 nm, such as the wavelength of the third wavelength optical signal is 1270 nm.

[0157] In some embodiments, the optical emitting component 400 can generate optical signals of multiple wavelengths. The optical signals of multiple wavelengths can be combined into a single transmitted optical signal, so that the number of transmitted optical signals emitted by the optical emitting component 400 is one. For example, the optical emitting component 400 can generate optical signals of three wavelengths, each with different rates, such as a fourth wavelength optical signal, a fifth wavelength optical signal, and a sixth wavelength optical signal having different rates.

[0158] In some embodiments, the wavelength range of the fourth wavelength optical signal is 1340-1344 nm, such as the wavelength of the fourth wavelength optical signal is 1342 nm; the wavelength range of the fifth wavelength optical signal is 1575-1580 nm, such as the wavelength of the fifth wavelength optical signal is 1577 nm; the wavelength range of the sixth wavelength optical signal is 1480-1500 nm, such as the wavelength of the sixth wavelength optical signal is 1490 nm.

[0159] like Figure 4 As shown, in some embodiments, a fiber optic adapter 700 may be provided in the housing of the optical module 200. One end of the fiber optic adapter 700 may be connected to the other end of the optical receiving component 500 so that an external input received optical signal passes through the fiber optic adapter 700 and is input to the optical receiving component 500.

[0160] One end of the optical receiving component 500 can be connected to the optical transmitting component 400, and the other end of the optical receiving component 500 can be connected to one end of the optical fiber adapter 700. The light emitting direction of the optical transmitting component 400 is toward the optical fiber adapter 700, so that the transmitted optical signal emitted by the optical transmitting component 400 is first transmitted to the optical receiving component 500, then transmitted to the optical fiber adapter 700 through the optical receiving component 500, and finally output through the optical fiber adapter 700. The optical receiving component 500 and the optical transmitting component 400 share the optical fiber adapter 700, and thus the uplink and downlink optical signals of the optical module share the optical fiber 101.

[0161] In some embodiments, among the optical signals incident on the optical receiving component 500, the number of transmitted optical signals (i.e., transmitted light beams) emitted by the optical transmitting component 400 is less than the number of externally input received optical signals (i.e., received light beams). For example, among the optical signals incident on the optical receiving component 500, the number of transmitted optical signals (i.e., transmitted light beams) emitted by the optical transmitting component 400 is at least two less than the number of externally input received optical signals (i.e., received light beams), thereby reducing the difficulty of splitting the optical signals within the optical receiving component 500.

[0162] In some embodiments, the light emitting component 400 and the circuit board 300 may be connected via a flexible circuit board 900 .

[0163] In some embodiments, the light receiving component 500 and the circuit board 300 may be connected via a flexible circuit board 900 .

[0164] Figure 5a A partial diagram of the internal structure of an optical module provided according to some embodiments. Figure 5b A partially exploded view of the internal structure of an optical module provided according to some embodiments. Figure 6 A portion of a light receiving component provided according to some embodiments Figure 1 .like Figure 5a 、 Figure 5b and Figure 6 As shown, in some embodiments, a first end of the light receiving component 500 can be connected to the fiber optic adapter 700 , and a second end of the light receiving component 500 can be connected to the light emitting component 400 .

[0165] In some embodiments, the light receiving component 500 may include a first cavity. One end of the first cavity may be connected to the light emitting component 400. The other end of the first cavity may be connected to the fiber optic adapter 700, so that the first cavity can receive the received optical signal transmitted by the fiber optic adapter 700. One end of the first cavity may be connected to the light emitting component 400, and the other end of the first cavity may be connected to one end of the fiber optic adapter 700, so that the transmitted optical signal emitted by the light emitting component 400 is first transmitted into the first cavity, then transmitted through the first cavity to the fiber optic adapter 700, and finally output through the fiber optic adapter 700.

[0166] like Figure 5a 、 Figure 5b and Figure 6As shown, in some embodiments, the optical receiving component 500 may include a first optical receiving assembly 530. The first optical receiving assembly 530 can be connected to the first cavity so that an externally input received optical signal (including optical signals of multiple wavelengths) is input into the first cavity through the fiber optic adapter 700 and then transmitted to the first optical receiving assembly 530 through the first cavity. The first optical receiving assembly 530 can receive an optical signal of a third wavelength. For example, the wavelength range of the received optical signal that the first optical receiving assembly 530 can receive is 1260-1280 nm.

[0167] In some embodiments, the optical receiving component 500 may include a second optical receiving assembly 520. The second optical receiving assembly 520 may be connected to the first cavity so that an externally input received optical signal (including optical signals of multiple wavelengths) is input into the first cavity through the optical fiber adapter 700 and then transmitted through the first cavity to the second optical receiving assembly 520. The second optical receiving assembly 520 may receive an optical signal of the first wavelength. For example, the wavelength range of the received optical signal that the second optical receiving assembly 520 may receive is 1284-1288 nm.

[0168] In some embodiments, the optical receiving component 500 may include a third optical receiving assembly 540. The third optical receiving assembly 540 may be connected to the first cavity so that an externally input received optical signal (including optical signals of multiple wavelengths) is input into the first cavity through the optical fiber adapter 700 and then transmitted through the first cavity to the third optical receiving assembly 540. The third optical receiving assembly 540 may receive an optical signal of a second wavelength. For example, the third optical receiving assembly 540 may receive optical signals having a wavelength range of 1290-1330 nm.

[0169] The optical receiving component 500 may include a first optical receiving assembly 530 , a second optical receiving assembly 520 , and a third optical receiving assembly 540 , so that the optical receiving component 500 can receive optical signals of three wavelengths having different rates.

[0170] In some embodiments, the first optical receiving assembly 530, the second optical receiving assembly 520, and the third optical receiving assembly 540 can be coaxially packaged. Exemplarily, the receiving optical axes of the first optical receiving assembly 530, the second optical receiving assembly 520, and the third optical receiving assembly 540 are parallel to each other. That is, the first optical receiving assembly 530, the second optical receiving assembly 520, and the third optical receiving assembly 540 each include a receiving tube cap and a receiving tube base. The receiving tube cap is mounted on the receiving tube base to form a receiving cavity. A light receiving chip is disposed within the receiving cavity. The light receiving chip receives optical signals and converts the optical signals into electrical signals.

[0171] The receiver socket is also provided with a receiver pin, one end of which is connected to the circuit board 300 via the flexible circuit board 900, thereby electrically connecting the receiver pin and the circuit board 300. The receiver pin extends upward from the bottom of the receiver socket until it extends beyond the top of the receiver socket, where it is wired to the pad where the optical receiver chip is located, thereby electrically connecting the receiver pin and the optical receiver chip, thereby transmitting the electrical signal through the receiver pin to the circuit board 300.

[0172] In some embodiments, a second lens is disposed on the top of the receiving tube cap of the optical receiving assembly. The second lens is a converging lens that can converge and couple the optical signal incident on the second lens to the optical receiving chip in the receiving cavity.

[0173] The second lens may or may not protrude from the receiving tube cap. When the second lens does not protrude from the receiving tube cap, a 0° filter may be directly mounted on the top of the optical receiving component. The 0° filter allows light signals of a certain wavelength to pass through, thereby reducing light signals of other wavelengths from being incident on the light receiving chip of the optical receiving component. For example, a second filter 5178 is directly mounted on the top of the second optical receiving component 520. The second filter 5178 is a 0° filter that allows light signals of a second wavelength to pass through.

[0174] When the second lens protrudes from the receiving tube cap, a bracket 550 is provided on the top of the optical receiving assembly to mount a 0° filter. For example, the top of the first optical receiving assembly 530 is mounted with a first filter 5177 via bracket 550. First filter 5177 is a 0° filter that allows a first wavelength optical signal to pass through.

[0175] In some embodiments, the receiving rates of the optical receiving chip of the first optical receiving assembly 530, the receiving rates of the optical receiving chip of the second optical receiving assembly 520, and the receiving rates of the optical receiving chip of the third optical receiving assembly 540 may all be different. For example, the receiving rate of the optical receiving chip of the second optical receiving assembly 520 is greater than the receiving rate of the optical receiving chip of the first optical receiving assembly 530, and greater than the receiving rate of the optical receiving chip of the third optical receiving assembly 540. For example, the receiving rate of the optical receiving chip of the first optical receiving assembly 530 is 10G, the receiving rate of the optical receiving chip of the second optical receiving assembly 520 is 25G, and the receiving rate of the optical receiving chip of the third optical receiving assembly 540 is 2.5G.

[0176] In some embodiments, the first light receiving component 530 , the second light receiving component 520 , and the third light receiving component 540 are all located on the same side of the light receiving member 500 .

[0177] In some embodiments, the first light receiving component 530 and the second light receiving component 520 may be located on one side of the light receiving component 500 , and the third light receiving component 540 may be located on the other side of the light receiving component 500 to reduce the length of the light receiving component 500 .

[0178] like Figure 5a 、 Figure 5b and Figure 6 As shown, in some embodiments, the first cavity may include a first connection hole 5111. The first connection hole 5111 may be located at the optical input and output ends of the light receiving component 500. The first connection hole 5111 may be connected to the optical fiber adapter 700 to connect the optical fiber adapter 700 to the first cavity. For example, one end of a connecting sleeve 710 is inserted into the first connection hole 5111, and the other end of the connecting sleeve 710 is connected to the optical fiber adapter 700, thereby connecting the optical fiber adapter 700 to the first cavity through the connecting sleeve 710.

[0179] like Figure 5a 、 Figure 5b and Figure 6 As shown, in some embodiments, the first cavity may include a second connection hole 5131. The second connection hole 5131 may be located at the light input end of the light receiving component 500 to connect the light emitting component 400 to the first cavity.

[0180] In some embodiments, the first connection hole 5111 and the second connection hole 5131 may be arranged opposite to each other.

[0181] In some embodiments, an isolator may be provided in the second connection hole 5131. The isolator may allow the optical transmission signal emitted by the optical transmission component 400 to be incident on the optical reception component 500, and prevent the optical transmission signal incident on the optical reception component 500 from returning to the optical transmission component 400.

[0182] like Figure 5a 、 Figure 5b and Figure 6 As shown, in some embodiments, the first cavity may include a third connection hole 5141. The third connection hole 5141 may be used for inserting the third light receiving assembly 540 to connect the third light receiving assembly 540 to the first cavity.

[0183] like Figure 5a 、 Figure 5b and Figure 6 As shown, in some embodiments, the first cavity may include a fourth connection hole 5121. The fourth connection hole 5121 may be used for inserting the second light receiving assembly 520 to connect the second light receiving assembly 520 to the first cavity.

[0184] like Figure 5a 、 Figure 5b and Figure 6 As shown, in some embodiments, the first cavity may include a fifth connection hole 5122. The fifth connection hole 5122 may be used for inserting the first light receiving assembly 530 so as to connect the first light receiving assembly 530 to the first cavity.

[0185] In some embodiments, the fourth connection hole 5121 and the fifth connection hole 5122 may be located on one side wall of the first cavity, and the third connection hole 5141 may be located on the other side wall of the first cavity, so as to reduce the length of the first cavity.

[0186] Figure 7a A portion of a light receiving component provided according to some embodiments Figure 2 . Figure 7b A partial cross-sectional view of a light receiving component provided according to some embodiments. Figure 7c FIG. 1 is a partial exploded view of a light receiving component according to some embodiments. Figure 7a 、 Figure 7b and Figure 7c As shown, in some embodiments, the first optical receiving component 530 may include a receiving tube seat 532, a receiving tube cap 533 and a receiving tube pin 531. The receiving tube cap 533 is covered on the top of the receiving tube seat 532 to form a receiving cavity. A light receiving chip is arranged in the receiving cavity. The receiving tube pin 531 extends upward from the bottom of the receiving tube seat 532 until it protrudes from the top of the receiving tube seat 532 and is connected to the light receiving chip in the receiving cavity. A second lens 534 is arranged on the receiving tube cap 533.

[0187] like Figure 5b 、 Figure 7b and Figure 7c As shown, in some embodiments, a bracket 550 is provided on the top of the first light receiving component 530 , and a first filter 5177 is mounted on the bracket 550 .

[0188] Figure 8a A structural diagram of a bracket provided according to some embodiments. Figure 8b FIG. 1 is a structural diagram of a bracket provided in accordance with some embodiments from another perspective. Figure 8a and Figure 8b As shown, in some embodiments, the bracket 550 may include a first fixing portion 551. The bottom surface of the first fixing portion 551 may be in contact with the outer top surface of the receiving tube cap 533 to fix the first fixing portion 551 to the receiving tube cap 533.

[0189] like Figure 8a and Figure 8bAs shown, in some embodiments, the bracket 550 may include a second fixing portion 552. The bottom surface of the second fixing portion 552 may be in contact with the top surface of the first fixing portion 551, so that the second fixing portion 552 is fixedly connected to the first fixing portion 551. The top surface of the second fixing portion 552 may be mounted with the first filter 5177.

[0190] like Figure 8a and Figure 8b As shown, in some embodiments, the bracket 550 may include a blocking portion 553. The inner surface of the blocking portion 553 is in contact with the outer surface of the second fixing portion 552 so that the blocking portion 553 is fixedly connected to the second fixing portion 552.

[0191] In some embodiments, the height of the blocking portion 553 is greater than the height of the second fixing portion 552 so as to enclose the first filter 5177 .

[0192] like Figure 8a and Figure 8b As shown, in some embodiments, the bracket 500 has a first light-through hole 554. The first light-through hole 554 can extend from the first fixing portion 551 to the second fixing portion 552, so that the first light-through hole 554 can pass through the bracket 500, thereby allowing the optical signal of the first cavity to be incident on the first light receiving component 530 through the first light-through hole 554.

[0193] In some embodiments, the first filter 5177 is placed at the end of the first light hole 554 to block the end of the first light hole 554, thereby allowing the optical signal (i.e., the third wavelength optical signal) that passes through the first filter 5177 to be incident on the first light receiving component 530 through the first light hole 554. For example, the size of the first filter 5177 is larger than the size of the first light hole 554.

[0194] In some embodiments, the size of the first light hole 554 is greater than or equal to the size of the second lens 534, so that the first light hole 554 can accommodate the second lens 534, thereby allowing the optical signal of the first cavity to be coupled to the optical receiving chip of the first optical receiving component 530 through the second lens 534 in the first light hole 554.

[0195] The first light hole 554 can accommodate the second lens 534, and the first filter 5177 is placed on the first light hole 554 so that the optical signal (i.e., the third wavelength optical signal) passing through the first filter 5177 is coupled to the optical receiving chip of the first optical receiving component 530 through the second lens 534 in the first light hole 554.

[0196] Figure 9a This is an exploded view of a first cavity provided according to some embodiments. Figure 9bFIG1 is a partial exploded view of a first cavity according to some embodiments. Figure 9a and Figure 9b As shown, in some embodiments, the first cavity may include a first cover plate 515 .

[0197] like Figure 9a and Figure 9b As shown, in some embodiments, the first cavity may include a first housing 510. A first cover 515 may be placed on the first housing 510 to form the first cavity. A first optical assembly 517 may be disposed within the first cavity. The first optical assembly 517 may transmit a transmitted optical signal to the fiber optic adapter 700, or may split a received optical signal transmitted by the fiber optic adapter 700 to the first cavity and transmit the split optical signal to a corresponding optical receiving assembly.

[0198] A light receiving component corresponds to a first optical component. For example, the first light receiving component corresponds to a first first optical component.

[0199] During the assembly process, the first optical component 517 is first fixed in the first housing 510 , and then the first cover 515 is covered on the first housing 510 to form a first cavity.

[0200] Figure 10 FIG. 1 is a partial optical path diagram of a first light receiving component according to some embodiments. Figure 10 As shown, Figure 10 In some embodiments, the first optical assembly 517a may include a first lens 5171. The first lens 5171 is used to collimate / focus optical signals. For example, the received optical signals transmitted from the first cavity to the fiber optic adapter 700 are focused by the first lens 5171, and the optical signals transmitted from the fiber optic adapter 700 to the first cavity are collimated by the first lens 5171.

[0201] like Figure 10 As shown, in some embodiments, the first optical component 517a may include a wave splitter component 5172. The first end of the wave splitter component 5172 may be disposed correspondingly to the first end of the optical receiving component, and the second end of the wave splitter component 5172 may be disposed correspondingly to the second end of the optical receiving component, so that the wave splitter component 5172 may be disposed along the length direction of the optical receiving component 500.

[0202] The wave splitter assembly 5172 can be positioned along the length of the optical receiving component 500, that is, along the length of the first housing 510, thereby reducing the width of the first housing 510 and, in turn, the width of the optical receiving component 500. When the wave splitter assembly 5172 is positioned along the length of the first housing 510, the width of the first housing 510 required to accommodate the wave splitter assembly 5172 can be reduced to meet the requirement. Because the optical receiving component's receiving pins are relatively short, reducing the width of the first housing 510 also reduces the width of the optical receiving component 500.

[0203] In some embodiments, the wave splitting assembly 5172 can be located between the first lens 5171 and the optical emitting component 400. The wave splitting assembly 5172 is disposed along the length of the optical receiving component 500 so that the wave splitting assembly 5172 can transmit the transmitted optical signal emitted by the optical emitting component 400 to the first lens 5171. The wave splitting assembly 5172 can split the optical signal collimated by the first lens 5171 according to wavelength. For example, the wave splitting assembly 5172 splits a received optical signal including a first wavelength, a second wavelength, and a third wavelength into a first wavelength optical signal, a second wavelength optical signal, and a third wavelength optical signal according to wavelength.

[0204] The wave splitting component 5172 can transmit the transmitted light signal (i.e., the transmitted light beam) emitted by the light emitting component 400 to the first lens 5171, and can also split the received light signal (i.e., the received light beam) collimated by the first lens 5171 according to the wavelength, thereby reducing the distance between the transmitted light beam and the received light beam in the width direction of the first shell 510, and thereby reducing the width dimension of the light receiving component 500.

[0205] In some embodiments, the first end of the wave splitter assembly 5172 has a receiving light input, and the second end of the wave splitter assembly 5172 has a transmitting light input. The transmitted light signal emitted by the optical transmitting component 400 is incident on the transmitting light input at the second end of the wave splitter assembly 5172 and is emitted through the receiving light input at the first end of the wave splitter assembly 5172. The received light signal including the first wavelength, the second wavelength, and the third wavelength transmitted by the optical fiber adapter 700 is incident on the receiving light input at the first end of the wave splitter assembly 5172 and is reflected from the transmitting light input at the second end of the wave splitter assembly 5172. The optical paths of the transmitted light signal and the received light signal overlap in the width direction of the optical receiving component 500, thereby reducing the width dimension of the optical receiving component 500.

[0206] In some embodiments, the wave splitting component 5172 has a first light output, a second light output, and a third light output, so that the first wavelength optical signal after splitting by the wave splitting component 5172 is emitted through the second light output of the wave splitting component 5172, the third wavelength optical signal is emitted through the first light output of the wave splitting component 5172, and the third wavelength optical signal is emitted through the third light output of the wave splitting component 5172.

[0207] The split first wavelength optical signal, second wavelength optical signal, and third wavelength optical signal are respectively incident on corresponding optical receiving components. For example, the first wavelength optical signal is incident on the second optical receiving component, the second wavelength optical signal is incident on the third optical receiving component, and the third wavelength optical signal is incident on the first optical receiving component.

[0208] The first wavelength optical signal is emitted from the second light output and then incident on the second optical receiving component, the third wavelength optical signal is emitted from the first light output and then incident on the first optical receiving component, and the second wavelength optical signal is emitted from the third light output and then incident on the third optical receiving component, thereby completing the transmission of the received optical signal after splitting.

[0209] In some embodiments, the first end of the wave splitter assembly 5172 and the second end of the wave splitter assembly 5172 are arranged in parallel so that the transmitted optical signal incident to the second end of the wave splitter assembly 5172 and the transmitted optical signal emitted through the first end of the wave splitter assembly 5172 are parallel to each other.

[0210] In some embodiments, the tilt angle of the first end of the wave splitting assembly 5172 is within a first preset range, so that a received optical signal including the first wavelength, the second wavelength, and the third wavelength incident on the wave splitting assembly 5172 can be separated into the first wavelength optical signal, the second wavelength optical signal, and the third wavelength optical signal by the wave splitting assembly 5172. By way of example, the first preset range is 8°±1°.

[0211] In some embodiments, the wave splitting assembly 5172 may include a wave splitting assembly 5172a, which may include a first substrate 51721. The first substrate 51721 is a block substrate. The first end surface of the first substrate 51721 is disposed corresponding to the first end of the light receiving component 500, and the second end surface of the first substrate 51721 is disposed corresponding to the second end of the light receiving component 500, such that the first substrate 51721 is disposed along the length of the light receiving component 500. The first end surface of the first substrate 51721 may face the first lens 5171. The second end surface of the first substrate 51721 may face the second connection hole 5131.

[0212] The first end surface of the first substrate 51721 and the second end surface of the first substrate 51721 are arranged in parallel, so that the optical signal incident on the first substrate 51721 and the optical signal emitted through the first substrate 51721 are parallel to each other.

[0213] The first end surface of the first substrate 51721 may face the first lens 5171 , and the second end surface of the first substrate 51721 may face the second connection hole 5131 , so that the first substrate 51721 may be disposed along the horizontal direction of the first cavity.

[0214] In some embodiments, the wave splitting assembly 5172a may include a first wave plate 51722. The first wave plate 51722 may be disposed on a first end surface of the first substrate 51721. The first wave plate 51722 may be located between the first lens 5171 and the first substrate 51721. The first wave plate 51722 serves as a light entry point for received light at the first end of the wave splitting assembly 5172a. The first wave plate 51722 may allow both transmitted and received optical signals to pass therethrough.

[0215] The central axis of the first wave plate 51722 can coincide with the central axis of the first lens 5171 , so that the received light signal collimated by the first lens 5171 is incident on the first wave plate 51722 , and the transmitted light signal of the first wave plate 51722 can be focused and coupled by the first lens 5171 .

[0216] In some embodiments, the wave splitting assembly 5172a may include a second wave plate 51723a. The second wave plate 51723a may be disposed on the first end surface of the first substrate 51721. One side of the second wave plate 51723a may be connected to the first wave plate 51722. The second wave plate 51723a may allow the received optical signal to be reflected.

[0217] In some embodiments, the wave splitting assembly 5172a may include a third wave plate 51724a. The third wave plate 51724a may be disposed on the first end surface of the first substrate 51721. One side of the third wave plate 51724a may be connected to the other side of the second wave plate 51273. The third wave plate 51724a serves as the first light output port at the first end of the wave splitting assembly 5172a.

[0218] In some embodiments, the third wave plate 51724a can be a low-pass filter that allows low-frequency signals to pass through and blocks high-frequency signals from passing through. For example, the third wave plate 51724a can allow the third wavelength optical signal to be transmitted, and can also allow the first wavelength optical signal and the second wavelength optical signal to be reflected.

[0219] The third wave plate 51724a can serve as a first end of the wave splitting component 5172a with a first light output point, so that the third wavelength optical signal is transmitted through the third wave plate 51724a.

[0220] In some embodiments, the wave splitting assembly 5172a may include a fourth wave plate 51725. The fourth wave plate 51725 may be disposed on the second end surface of the first substrate 51721. The fourth wave plate 51725 may be disposed opposite the first wave plate 51722. The fourth wave plate 51725 may be located between the first substrate 51721 and the second connection hole 5131. The fourth wave plate 51725 serves as the entrance point for transmitted light at the second end of the wave splitting assembly 5172a. The fourth wave plate 51725 may allow for reflection of received optical signals or transmission of transmitted optical signals.

[0221] The central axis of the fourth wave plate 51725 may coincide with the central axis of the second connection hole 5131 , so that the emission light signal incident on the first cavity through the second connection hole 5131 is incident on the fourth wave plate 51725 .

[0222] The second wave plate 51723 a may be located on the reflected light path of the fourth wave plate 51725 , so that the second wave plate 51723 a may receive the received light signal reflected by the fourth wave plate 51725 .

[0223] In some embodiments, the wave splitting assembly 5172a may include a fifth wave plate 51726a. The fifth wave plate 51726a may be disposed on the second end surface of the first substrate 51721. The fifth wave plate 51726a may be disposed opposite the second wave plate 51723a. One side of the fifth wave plate 51726a may be connected to the fourth wave plate 51725. The fifth wave plate 51726a serves as the second light output port at the second end of the wave splitting assembly 5172a.

[0224] The fifth wave plate 51726a can be located on the reflection light path of the second wave plate 51723a, so that the fifth wave plate 51726a can receive the received light signal reflected by the second wave plate 51723a.

[0225] In some embodiments, the fifth wave plate 51726a can be a bandpass filter that allows signals within a certain frequency range to pass through and blocks signals of other frequencies from passing through. For example, the fifth wave plate 51726a can allow a first wavelength optical signal to transmit and can also allow a third wavelength optical signal and a second wavelength optical signal to reflect.

[0226] The fifth wave plate 51726a can serve as a second light output port at the second end of the wave splitting component 5172a, so that the first wavelength optical signal is transmitted through the fifth wave plate 51726a.

[0227] The third wave plate 51724a may be located on the reflected light path of the fifth wave plate 51726a, so that the third wave plate 51724a may receive the received light signal reflected by the fifth wave plate 51726a.

[0228] In some embodiments, the wave splitter assembly 5172a may include a sixth wave plate 51727a. The sixth wave plate 51727a may be disposed on the second end surface of the first substrate 51721. The sixth wave plate 51727a may be disposed opposite the third wave plate 51724a. The sixth wave plate 51727a may be connected to the other side of the fifth wave plate 51726a. The sixth wave plate 51727a serves as the third light output port at the second end of the wave splitter assembly 5172a.

[0229] The sixth wave plate 51727a can be located on the reflected light path of the third wave plate 51724a, so that the sixth wave plate 51727a can receive the received light signal reflected by the third wave plate 51724a.

[0230] In some embodiments, the sixth wave plate 51727a can be a high-pass filter that allows high-frequency signals to pass through and blocks low-frequency signals from passing through. For example, the sixth wave plate 51727a can allow the second wavelength optical signal to be transmitted, and can also allow the first wavelength optical signal and the third wavelength optical signal to be reflected.

[0231] The sixth wave plate 51727a can serve as a second end of the wave splitting component 5172a with a third light output, so that the second wavelength optical signal is transmitted through the sixth wave plate 51727a.

[0232] The fourth wave plate 51725 , the fifth wave plate 51726 a , and the sixth wave plate 51727 a may be connected in sequence to reduce the length of the second end surface of the first substrate 51721 .

[0233] In some embodiments, the center-to-center distance between any two of the fourth wave plate 51725, the fifth wave plate 51726a, and the sixth wave plate 51727a is greater than a first preset value, thereby increasing the distance between the first wavelength optical signal transmitted by the fifth wave plate 51726a and the second wavelength optical signal transmitted by the sixth wave plate 51727a, thereby improving isolation. For example, the first preset value is 1000 nm, and the center-to-center distance between any two of the fourth wave plate 51725, the fifth wave plate 51726a, and the sixth wave plate 51727a is greater than 1000 nm.

[0234] The first wave plate 51722 , the second wave plate 51723 a , and the third wave plate 51724 a may be sequentially connected to shorten the length of the first end surface of the first substrate 51721 .

[0235] Since the multiple wave plates on the first end face of the first substrate 51721 and the multiple wave plates on the second end face of the first substrate 51721 are relatively arranged, the center distance between any two wave plates among the first wave plate 51722, the second wave plate 51723a and the third wave plate 51724a is 1000nm.

[0236] The third wave plate 51724a is located on the first end face of the first substrate 51721, and the fifth wave plate 51726a and the sixth wave plate 51727a are located on the second end face of the first substrate 51721, so that the emission direction of the optical signal transmitted through the third wave plate 51724a is opposite to the emission direction of the optical signal transmitted through the fifth wave plate 51726a or the optical signal transmitted through the sixth wave plate 51727a, thereby improving the isolation.

[0237] like Figure 10 As shown, in some embodiments, the first optical component 517a may include a first reflector 5173. The first reflector 5173 may be located on the output optical path of the fifth wave plate 51726a to reflect the optical signal transmitted by the fifth wave plate 51726a. The first reflector 5173 may allow the first wavelength optical signal transmitted by the fifth wave plate 51726a to be reflected.

[0238] like Figure 10 As shown, in some embodiments, the first optical component 517a may include a second reflector 5176. The second reflector 5176 may be located on the output optical path of the third wave plate 51724a to reflect the optical signal transmitted through the third wave plate 51726. The second reflector 5176 may allow the third wavelength optical signal transmitted through the third wave plate 51724a to be reflected.

[0239] like Figure 10 As shown, in some embodiments, the first optical component 517a may include a third reflector 5175. The third reflector 5175 may be located on the output optical path of the sixth wave plate 51727a to reflect the optical signal transmitted through the sixth wave plate 51727a. The third reflector 5175 may allow the second wavelength optical signal transmitted through the sixth wave plate 51727a to be reflected.

[0240] like Figure 10 As shown, the first optical component 517a may include a first filter 5177. The first filter 5177 may be located on the reflected light path of the second reflector 5176.

[0241] In some embodiments, the first filter 5177 can be mounted on the top of the first optical receiving component 530 to filter the optical signal so that the first optical receiving component 530 receives the third wavelength optical signal.

[0242] like Figure 10 As shown, the first optical component 517a may include a second filter 5178. The second filter 5178 may be located on the reflected light path of the first reflector 5173.

[0243] In some embodiments, the second filter 5178 can be mounted on the top of the second optical receiving component 520 to filter the optical signal so that the second optical receiving component 520 receives the first wavelength optical signal.

[0244] like Figure 10 As shown, in some embodiments, the first optical assembly 517a may include a third filter 5174. The third filter 5174 may be located in the output optical path of the sixth wave plate 51727a. The third filter 5174 may allow the optical signal transmitted by the sixth wave plate to pass through. For example, the third filter 5174 may allow the second wavelength optical signal to pass through.

[0245] In some embodiments, the third filter 5174 can be mounted on the top of the third optical receiving component 540 to filter the optical signal so that the third optical receiving component 540 receives the second wavelength optical signal.

[0246] In some embodiments, the third filter 5174 may be located between the sixth wave plate 51727 a and the third light receiving component 540 , and the third filter 5174 is not connected to the third light receiving component 540 .

[0247] like Figure 10 As shown, the light path is as follows:

[0248] The transmitted optical signal is sequentially transmitted through the fourth wave plate 51725 and the first wave plate 51722 , and then focused and coupled to the optical fiber adapter 700 by the first lens 5171 .

[0249] The received optical signal is first collimated by the first lens 5171, then transmitted through the first wave plate 51722, and then reflected from the fourth wave plate 51725 and the second wave plate 51723a before entering the fifth wave plate 51726a. The first wavelength optical signal in the received optical signal is first transmitted through the fifth wave plate 51726a, then reflected from the first reflector 5173 before entering the second filter 5178.

[0250] The third wavelength optical signal in the received optical signal is first reflected by the fifth wave plate 51726 a , then transmitted by the third wave plate 51724 a , and finally reflected by the second reflector 5176 before entering the first filter 5177 .

[0251] The second wavelength optical signal in the received optical signal is first reflected by the fifth wave plate 51726a and the third wave plate 51724a, then transmitted by the sixth wave plate 51727a, filtered again by the third filter 5174, and finally reflected by the third reflector 5175.

[0252] Figure 11a This is a structural diagram of a first shell provided according to some embodiments. Figure 11bThis is a structural diagram of a first shell provided in accordance with some embodiments from another perspective. Figure 11c FIG. 1 is a cross-sectional view of a first shell according to some embodiments. Figure 11a 、 Figure 11b and Figure 11c As shown, in some embodiments, the first housing 510 may include a first sidewall 511. The first sidewall 511 is a sidewall of the first housing 510 that is adjacent to the fiber optic adapter 700. The first sidewall 511 may have a first connection hole 5111. The first connection hole 5111 may extend through the first sidewall 5111, thereby allowing the first connection hole 5111 to communicate with the inner cavity of the first cavity, thereby allowing optical signals to be transmitted along the first connection hole 5111 within and outside the first cavity.

[0253] like Figure 11a 、 Figure 11b and Figure 11c As shown, in some embodiments, the first housing 510 may include a second sidewall 512. One end of the second sidewall 512 may be connected to one end of the first sidewall 511.

[0254] like Figure 11a 、 Figure 11b and Figure 11c As shown, in some embodiments, the first housing 510 may include a third sidewall 513. One end of the third sidewall 513 may be connected to the other end of the second sidewall 512. The third sidewall 513 is a sidewall of the first housing 510 that is adjacent to the light emitting component 400. The third sidewall 513 may be disposed opposite the first sidewall 511. The third sidewall 513 may have a second connection hole 5131. The second connection hole 5131 may extend through the third sidewall 513 so as to communicate with the inner cavity of the first cavity, thereby allowing the transmitted light signal emitted by the light emitting component 400 to enter the first cavity along the second connection hole 5131.

[0255] like Figure 9b and Figure 11b As shown, in some embodiments, the third sidewall 513 may have a first bearing surface 5132. The first bearing surface 5132 may be formed by an inward depression of the inner surface of the third sidewall 513. The first bearing surface 5132 may face the third connection hole 5141.

[0256] like Figure 11b and Figure 11c As shown, in some embodiments, the third sidewall 513 may have a second bearing surface 5133. The second bearing surface 5133 may be formed by an inward depression of the inner surface of the third sidewall 513. One end of the second bearing surface 5133 may be connected to the first bearing surface 5132. The second bearing surface 5133 may face the fourth connection hole 5121 and the first connection hole 5111.

[0257] like Figure 11b and Figure 11c As shown, in some embodiments, the third sidewall 513 may have a fifth bearing surface 5134. The fifth bearing surface 5134 may be formed by an inward depression of the inner surface of the third sidewall 513. The fifth bearing surface 5134 may be connected to the other end of the second bearing surface 5133. A second connection hole 5131 may be provided between the fifth bearing surface 5134 and the bottom plate of the first housing 510. The fifth bearing surface 5134 may face the first connection hole 5111.

[0258] like Figure 11a 、 11b and Figure 11c As shown, in some embodiments, the first housing 510 may include a fourth sidewall 514. One end of the fourth sidewall 514 may be connected to one end of the third sidewall 513. The other end of the fourth sidewall 514 may be connected to the other end of the first sidewall 511. The fourth sidewall 514 may be disposed opposite the second sidewall 512.

[0259] like Figure 11a As shown, in some embodiments, the fourth sidewall 514 may have a third supporting surface 5143. The third supporting surface 5143 may be a partial area of ​​the inner surface of the fourth sidewall 514.

[0260] like Figure 11a 、 Figure 11b and Figure 11c As shown, the fourth side wall 514 may have a fourth supporting surface 5144. The fourth supporting surface 5144 may be a partial area of ​​the inner surface of the fourth side wall 514. The fourth supporting surface 5144 may be connected to the third supporting surface 5143 or not.

[0261] In some embodiments, the third supporting surface 5143 is tilted relative to the fourth supporting surface 5114 so that the third supporting surface 5413 can face the fifth connecting hole 5122.

[0262] like Figure 9a 、 Figure 11b and Figure 11c As shown, in some embodiments, the first housing 510 may include a bottom plate 5161. The bottom plate 5161 may be used to support the first optical assembly 517a. The bottom plate 5161 may be connected to the first side wall 511. The bottom plate 5161 may be connected to the second side wall 512. The bottom plate 5161 may be connected to the third side wall 513. The bottom plate 5161 may be connected to the fourth side wall 514.

[0263] In some embodiments, the bottom plate of the first housing 510 may have a reserved hole 519. The reserved hole 519 may traverse the bottom plate 5161 of the first housing 510. The reserved hole 519 may be located below the second bearing surface 5133 and the fifth bearing surface 5134, so that the reserved hole 519 can be arranged corresponding to the second bearing surface 5133 and the fifth bearing surface 5134, thereby facilitating the formation of the second bearing surface 5133 and the fifth bearing surface 5134.

[0264] The first side wall 511 , the second side wall 512 , the third side wall 513 and the fourth side wall 514 are sequentially connected and respectively connected to the bottom plate 5161 to form a first housing 510 having an opening. The opening of the first housing 510 may face the lower housing 202 .

[0265] like Figure 11a 、 Figure 11b and Figure 11c As shown, in some embodiments, the first housing 510 is recessed inward to form a receiving cavity 516. The receiving cavity 516 may be an inner cavity of the first cavity body, such that the receiving cavity 516 can communicate with the first connection hole 5111, the second connection hole 5131, the third connection hole 5141, the fourth connection hole 5121, and the fifth connection hole 5122. The receiving cavity 516 can accommodate other components in the first optical assembly 517a except the first filter 5177 and the second filter 5178.

[0266] In some embodiments, the fourth connection hole 5121 and the fifth connection hole 5122 may be located on one side wall of the second side wall 512 and the fourth side wall 514, and the third connection hole 5141 may be located on the other side wall of the second side wall 512 and the fourth side wall 514. For example, the fourth connection hole 5121 and the fifth connection hole 5122 may be located on the second side wall 512, and the third connection hole 5141 may be located on the fourth side wall 514.

[0267] like Figure 11a 、 Figure 11b and Figure 11c As shown, the second side wall 512 may have a fourth connection hole 5121. The fourth connection hole 5121 may traverse the second side wall 512 so that the fourth connection hole 5121 can communicate with the inner cavity of the first cavity, thereby allowing the optical signal of the inner cavity of the first cavity to be incident on the optical receiving component connected to the fourth connection hole 5121. For example, the optical signal of the inner cavity of the first cavity can be incident on the second optical receiving component 520.

[0268] like Figure 11a and Figure 11c As shown, in some embodiments, the fourth connection hole 5121 may include a first sub-connection hole 51211 .

[0269] like Figure 11a and Figure 11c As shown, in some embodiments, the fourth connection hole 5121 may include a second sub-connection hole 51212. One end of the second sub-connection hole 51212 may be connected to the inner cavity of the first housing 510. The other end of the second sub-connection hole 51212 may be connected to the first sub-connection hole 51211. The size of the second sub-connection hole 51212 is smaller than that of the first sub-connection hole 51211.

[0270] One end of the second sub-connection hole 51212 can be connected to the inner cavity of the first shell 510, and the other end of the second sub-connection hole 51212 can be connected to the first sub-connection hole 51211, so that the fourth connection hole 5121 can be connected to the inner cavity of the first cavity.

[0271] like Figure 11a 、 Figure 11b and Figure 11c As shown, the second side wall 512 may have a fifth connection hole 5122. The fifth connection hole 5122 may be closer to the first side wall 512 than the fourth connection hole 5121. The fifth connection hole 5122 may traverse the second side wall 512 so that the fifth connection hole 5122 can communicate with the inner cavity of the first cavity, thereby allowing the optical signal of the inner cavity of the first cavity to be incident on the optical receiving component connected to the fifth connection hole 5122. For example, the optical signal of the inner cavity of the first cavity can be incident on the first optical receiving component 530.

[0272] In some embodiments, the fourth connection hole 5121 is closer to the second connection hole 5131 than the fifth connection hole 5122 , so that the light receiving component placed in the fourth connection hole 5121 is closer to the light emitting component 400 than the light receiving component placed in the fifth connection hole 5122 .

[0273] like Figure 11a and Figure 11c As shown, in some embodiments, the fifth connection hole 5122 may include a third sub-connection hole 51221 .

[0274] like Figure 11a and Figure 11c As shown, in some embodiments, the fifth connection hole 5122 may include a fourth sub-connection hole 51222. One end of the fourth sub-connection hole 51222 may communicate with the inner cavity of the first housing 510. The other end of the fourth sub-connection hole 51222 may communicate with the third sub-connection hole 51221. The size of the fourth sub-connection hole 51222 is smaller than that of the third sub-connection hole 51221.

[0275] One end of the fourth sub-connection hole 51222 can be connected to the inner cavity of the first shell 510, and the other end of the fourth sub-connection hole 51222 can be connected to the third sub-connection hole 51221, so that the fifth connection hole 5122 can be connected to the inner cavity of the first cavity.

[0276] like Figure 11a 、 Figure 11b and Figure 11c As shown, in some embodiments, the second sidewall 512 may have a first step 5123. The first step 5123 may be located between the fourth connection hole 5121 and the fifth connection hole 5122. The first step 5123 can cause the surface of the area where the fifth connection hole 5122 is located to be at a different height than the surface of the area where the fourth connection hole 5121 is located, that is, the depth of the fifth connection hole 5122 is different from the depth of the fourth connection hole 5121. This allows the light receiving components placed in the fifth connection hole 5122 and the fourth connection hole 5121 to be located in the corresponding connection holes, thereby improving the connection stability between the fifth connection hole 5122 and the fourth connection hole 5121 and their corresponding light receiving components. For example, the second light receiving component 520 is placed in the fourth connection hole 5121, and the first light receiving component 530 is placed in the fifth connection hole 5122. The first step 5123 causes the depth of the fifth connection hole 5122 to be greater than the depth of the fourth connection hole 5121.

[0277] like Figure 11a 、 Figure 11b and Figure 11c As shown, the fourth side wall 514 may have a third connection hole 5141. The third connection hole 5141 may traverse the fourth side wall 514 so that the third connection hole 5141 can communicate with the inner cavity of the first cavity, thereby allowing the optical signal of the inner cavity of the first cavity to be incident on the optical receiving component connected to the third connection hole 5141. For example, the optical signal of the inner cavity of the first cavity can be incident on the third optical receiving component 540.

[0278] In some embodiments, the central axis of the fourth connection hole 5121 is closer to the first connection hole 5131 than the central axis of the third connection hole 5141 , so that the optical receiving component placed in the fourth connection hole 5121 is closer to the optical fiber adapter 700 than the optical receiving component placed in the third connection hole 5141 .

[0279] like Figure 9a 、 Figure 9b and Figure 11cAs shown, in some embodiments, the fourth side wall 514 may have a second step 5142 so that the area where the third connecting hole 5141 in the fourth side wall 514 is located is recessed relative to other areas of the fourth side wall 514, thereby providing an accommodation space for the third light receiving component 540 inserted into the third connecting hole 5141 and increasing the strength of the first shell 510.

[0280] Figure 12a This is a light path diagram of a first light receiving component provided according to some embodiments. Figure 12b 1 is a cross-sectional view of a first light receiving component according to some embodiments. Figure 12a and Figure 12b As shown, in some embodiments, the first lens 5171 can be located outside the first connection hole 5111, that is, within the accommodating cavity 516, to facilitate active coupling of the first lens 5171. Since the space of the accommodating cavity 516 is larger than that of the first connection hole 5111, active coupling of the first lens 5171 is facilitated, reducing assembly difficulty.

[0281] In some embodiments, the first lens 5171 can be passively mounted in the first connection hole 5111 to reduce the volume of the first cavity.

[0282] like Figure 12a and Figure 12b As shown, in some embodiments, the second optical receiving component 520 can be located on the reflected light path of the first reflector 5173, and the first reflector 5173 faces the fifth wave plate 51726a and the second optical receiving component 520, so that the first wavelength optical signal transmitted by the fifth wave plate 51726a is reflected to the second optical receiving component 520 through the first reflector 5173.

[0283] like Figure 12a and Figure 12b As shown, in some embodiments, the first optical receiving component 530 can be located on the reflected light path of the second reflector 5176, and the second reflector 5176 faces the third wave plate 51724a and the first optical receiving component 530, so that the three-wavelength optical signal transmitted by the third wave plate 51724a is reflected to the first optical receiving component 530 through the second reflector 5176.

[0284] like Figure 12a and Figure 12b As shown, in some embodiments, the third optical receiving component 540 can be located on the reflected light path of the third reflector 5175, and the third reflector 5175 faces the sixth wave plate 51727a and the third optical receiving component 540, so that the second wavelength optical signal transmitted by the sixth wave plate 51727a is reflected to the third optical receiving component 540 through the third reflector 5175.

[0285] In some embodiments, the wavelength range of the first wavelength optical signal received by the second optical receiving component 520 is 1284-1288 nm, and the receiving rate of the second optical receiving component 520 is greater than the receiving rates of the first optical receiving component 530 and the third optical receiving component 540, resulting in the receiving photosensitive surface of the second optical receiving component 520 being smaller than the receiving photosensitive surfaces of the first optical receiving component 530 and the third optical receiving component 540, so that the transmission path of the first wavelength optical signal received by the second optical receiving component 520 is the shortest, and the optical receiving chip of the second optical receiving component 520 can receive the first wavelength optical signal with high coupling efficiency.

[0286] In some embodiments, the wavelength range of the first wavelength optical signal received by the second optical receiving component 520 is 1284-1288 nm, the wavelength range of the third wavelength optical signal received by the first optical receiving component 510 is 1260-1280 nm, and the wavelength range of the second wavelength optical signal received by the third optical receiving component 540 is 1290-1330 nm. The receiving rates of the second optical receiving component 520, the first optical receiving component 530 and the third optical receiving component 540 decrease successively, and the receiving photosensitive surfaces of the second optical receiving component 520, the first optical receiving component 530 and the third optical receiving component 540 increase successively, so that the transmission paths of the first wavelength optical signal, the second wavelength optical signal and the third wavelength optical signal increase successively, and the second optical receiving component 520, the first optical receiving component 530 and the third optical receiving component 540 can all receive the corresponding wavelength receiving optical signals with high efficiency.

[0287] like Figure 12a and Figure 12b As shown, in some embodiments, the second optical receiving assembly 520 can be placed in the fourth connection hole 5121. The second optical receiving assembly 520 can be placed in the first sub-connection hole 51211, and the second filter 5178 on the second optical receiving assembly 520 can be placed in the second sub-connection hole 51212.

[0288] like Figure 12a and Figure 12b As shown, in some embodiments, the first light receiving assembly 530 can be placed in the fifth connection hole 5122. The first light receiving assembly 530 is placed in the third sub-connection hole 51221, and the bracket 550 on the first light receiving assembly 530 is partially located in the third sub-connection hole 51221 and partially located in the fourth sub-connection hole 51222. The first filter 5177 on the bracket 550 is located in the fourth sub-connection hole 51222.

[0289] like Figure 12a and Figure 12b As shown, in some embodiments, the third light receiving assembly 540 can be placed in the third connection hole 5141 .

[0290] like Figure 11b、 Figure 12a and Figure 12b As shown, the first reflector 5173 can be supported on the second supporting surface 5133 so that the first reflector 5173 can face the fifth wave plate 51726a and the second optical receiving component 520 in the fourth connecting hole 5121, so that the first reflector 5173 can reflect the first wavelength optical signal to the second optical receiving component 520.

[0291] like Figure 11b 、 Figure 12a and Figure 12b As shown, the first reflective sheet 5173 can be supported on the fifth supporting surface 5134. The first reflective sheet 5173 is supported on the second supporting surface 5133 and the fifth supporting surface 5134 to increase the contact area between the first reflective sheet 5173 and the first housing 510 and improve the connection stability between the first reflective sheet 5173 and the first housing 510.

[0292] like Figure 11a 、 Figure 12a and Figure 12b As shown, the second reflective plate 5176 can be supported on the third supporting surface 5143, so that the second reflective plate 5176 can face the fifth connecting hole 5122, and then the second reflective plate 5176 can face the first optical receiving component 530 in the fifth connecting hole 5122, so that the second reflective plate 5176 can reflect the third wavelength optical signal to the first optical receiving component 530.

[0293] like Figure 11c 、 Figure 12a and Figure 12b As shown, a side wall of the wave splitter assembly 5172a can be supported on the fourth supporting surface 5144 to facilitate bonding of the wave splitter assembly 5172a to the first housing 510. The fourth supporting surface 5144 can be located on the inner surface of the fourth side wall 514 or the inner surface of the second side wall 512.

[0294] like Figure 11b 、 Figure 12a and Figure 12b As shown, the third reflective plate 5175 can be supported on the first supporting surface 5132, so that the third reflective plate 5175 can face the third connecting hole 5141, and then the third reflective plate 5175 can face the third optical receiving component 540 in the third connecting hole 5141, so that the third reflective plate 5175 can reflect the second wavelength optical signal to the third optical receiving component 540.

[0295] In some embodiments, the third reflector 5175 may include an incident surface, a reflective surface, and an exit surface. The incident surface is located between the sixth wave plate 51727a and the reflective surface, the exit surface is located between the third light receiving component 540 and the reflective surface, and the reflective surface is inclined relative to the incident surface. The second wavelength optical signal is incident on the third reflector 5175 through the incident surface, and is reflected by the reflective surface of the third reflector 5175 and then emitted through the exit surface.

[0296] In some embodiments, one side of the reflective surface may be connected to one side of the incident surface via a connecting surface.

[0297] In some embodiments, the other side of the reflective surface may be connected to one side of the emitting surface.

[0298] In some embodiments, the other side of the exit surface may be connected to the other side of the incident surface.

[0299] One side of the reflecting surface can be connected to one side of the incident surface through a connecting surface, the other side of the reflecting surface can be connected to one side of the exit surface, and the other side of the exit surface can be connected to the other side of the incident surface. This can reduce the width of the third reflecting plate 5175 and increase the contact area between the third reflecting plate 5175 (the connecting surface of the third reflecting plate 5175) and the first supporting surface 5132, thereby improving the connection stability between the third reflecting plate 5175 and the first shell 510.

[0300] like Figure 11b 、 Figure 12a and Figure 12b As shown, the third filter 5174 can be supported on the first supporting surface 5132.

[0301] In some embodiments, the third filter 5174 may be located between the sixth wave plate 51717 and the third reflector 5175 to reduce the distance between the third reflector 5175 and the third light receiving assembly 540 , thereby reducing the width of the first housing 510 .

[0302] In some embodiments, the third filter 5174 is connected to the incident surface of the third reflector 5175 so that the third filter 5174 is in contact with the third reflector 5175 , thereby reducing the length of the first shell 510 .

[0303] like Figure 11c 、 Figure 12a and Figure 12b As shown, in some embodiments, the central axis of the fourth connecting hole 5121 is closer to the first connecting hole 5131 relative to the central axis of the third connecting hole 5141, which not only reduces the interference between the first reflector 5173 and the third reflector 5175, but also provides a placement space for the third filter 5174, and also reduces the width of the first shell 510.

[0304] like Figure 10 and Figure 12a As shown, the receiving optical path is as follows: the received optical signal is first collimated by the first lens 5171 and then enters the wave splitting component 5172a. After the wave splitting component 5172a splits the received optical signal into a first wavelength optical signal, a second wavelength optical signal and a third wavelength optical signal, the first wavelength optical signal is reflected by the first reflector 5173 to the second filter 5178, and is filtered by the second filter 5178 before entering the second optical receiving component 520; the third wavelength optical signal is reflected by the second reflector 5176 to the first filter 5177 for filtration, and is then incident on the first optical receiving component 530; the second wavelength optical signal is filtered by the third filter 5174 and then incident on the third reflector 5175, and is reflected by the third reflector 5175 to the third optical receiving component 540.

[0305] Figure 13a FIG. 1 is a partial optical path diagram of a second light receiving component provided according to some embodiments. Figure 13a As shown, in some embodiments, the optical receiving component 500 may include a first optical receiving component 530, a second optical receiving component 520, a third optical receiving component 540, and a first optical component 517b. The first optical component 517b may include a wave splitter component 5172b. The wave splitter component 5172b can transmit the transmitted optical signal. The wave splitter component 5172b can also split the received optical signal into a first wavelength optical signal, a second wavelength optical signal, and a third wavelength optical signal, and emit them. The first wavelength optical signal, the second wavelength optical signal, and the third wavelength optical signal are respectively incident on the corresponding optical receiving components. For example, the first wavelength optical signal is incident on the second optical receiving component 520, the second wavelength optical signal is incident on the third optical receiving component 540, and the third wavelength optical signal is incident on the first optical receiving component 530.

[0306] The wave splitting assembly 5172b may include a first substrate 51721, a first wave plate 51722, a second wave plate 51723b, a third wave plate 51724b, a fourth wave plate 51725, a fifth wave plate 51726a, and a sixth wave plate 51727a. The first end of the first substrate 51721 may be sequentially connected to the first wave plate 51722, the second wave plate 51723b, and the third wave plate 51724b. The second end of the first substrate 51721 may be sequentially connected to the fourth wave plate 51725, the fifth wave plate 51726a, and the sixth wave plate 51727a. The fifth wave plate 51726a serves as the second light output port at the second end of the wave splitting assembly 5172b, and the sixth wave plate 51727a serves as the third light output port at the second end of the wave splitting assembly 5172b.

[0307] In some embodiments, the second wave plate 51723b can be a low-pass filter that allows low-frequency signals to pass through and blocks high-frequency signals from passing through. For example, the second wave plate 51723b can allow the third wavelength optical signal to be transmitted, and can also allow the first wavelength optical signal and the second wavelength optical signal to be reflected.

[0308] The second wave plate 51723b can serve as the first light output point of the first end of the wave splitting assembly 5172, so that the third wavelength optical signal can be transmitted through the second wave plate 51723b.

[0309] In some embodiments, the third wave plate 51724b may allow the received optical signal to be reflected. For example, the third wave plate 51724b may allow the second wavelength optical signal to be reflected.

[0310] The first optical assembly 517b may include a first reflector 5173, a second reflector 5176, a third reflector 5175, a first filter 5177, a second filter 5178, and a third filter 5174. The first reflector 5173 may be positioned on the output optical path of the fifth wave plate 51726a to reflect the first wavelength optical signal transmitted through the fifth wave plate 51726a. The second reflector 5176 may be positioned on the output optical path of the second wave plate 51723b to reflect the third wavelength optical signal transmitted through the second wave plate 51723b. The third reflector 5175 may be positioned on the output optical path of the sixth wave plate 51727a to reflect the second wavelength optical signal transmitted through the sixth wave plate 51727a. The first filter 5177 may be positioned on the reflected optical path of the second reflector 5176. The second filter 5178 may be positioned on the reflected optical path of the first reflector 5173. The third filter 5174 may be positioned on the output optical path of the sixth wave plate 51727a.

[0311] Figure 13aAs shown, the receiving optical path is as follows: the received optical signal is first collimated by the first lens 5171, then transmitted through the first wave plate 51722, and finally reflected by the fourth wave plate 51725 before entering the second wave plate 51723b. The third wavelength optical signal in the received optical signal is first transmitted through the second wave plate 51723b, then reflected by the second reflector 5176, and finally filtered by the first filter 5177 before entering the first optical receiving assembly 530. The first wavelength optical signal in the received optical signal is first reflected by the second wave plate 51723b, then transmitted through the fifth wave plate 51726, and finally reflected by the first reflector 5173. Finally, it is filtered by the second filter 5178 before entering the second optical receiving assembly 520. The second wavelength optical signal in the received optical signal is first reflected by the second wave plate 51723b, the fifth wave plate 51726, and the third wave plate 51724b in sequence, then transmitted by the sixth wave plate 51727, filtered again by the third filter 5174, and finally reflected by the third reflector 5175 before entering the third optical receiving component 540.

[0312] Except for the above-mentioned parts which are different from the first light receiving component, the rest of the parts are the same as the first light receiving component and will not be described again here.

[0313] Figure 13b FIG. 1 is a partial optical path diagram of a third type of light receiving component according to some embodiments. Figure 13b As shown, in some embodiments, the optical receiving component 500 may include a first optical receiving component 530, a second optical receiving component 520, a third optical receiving component 540, and a first optical component 517c. The first optical component 517c may include a wave splitter component 5172c. The wave splitter component 5172c can transmit the transmitted optical signal. The wave splitter component 5172c can also split the received optical signal into a first wavelength optical signal, a second wavelength optical signal, and a third wavelength optical signal, and transmit them. The first wavelength optical signal, the second wavelength optical signal, and the third wavelength optical signal are respectively incident on the corresponding optical receiving components. For example, the first wavelength optical signal is incident on the second optical receiving component 520, the second wavelength optical signal is incident on the third optical receiving component 540, and the third wavelength optical signal is incident on the first optical receiving component 530.

[0314] like Figure 13b As shown, the first light receiving component 530 and the second light receiving component 520 can be located on one side of the light receiving component 500, and the third light receiving component 540 can be located on the other side of the light receiving component 500. The first light receiving component 530 and the second light receiving component 520 can be located at different ends of the wave splitting component 5172c, and the third light receiving component 540 and the first light receiving component 530 can be located at the same end of the wave splitting component 5172c, with the second light receiving component 520 being closer to the light emitting component than the first light receiving component 530.

[0315] The wave splitting assembly 5172c may include a first substrate 51721, a first wave plate 51722, a second wave plate 51723b, a third wave plate 51724b, a fourth wave plate 51725, a fifth wave plate 51726b, a sixth wave plate 51727b, and a seventh wave plate 51728. A first end of the first substrate 51721d may be sequentially connected to the first wave plate 51722, the second wave plate 51723b, the third wave plate 51724b, and the seventh wave plate 51728, and the third wave plate 51724b may be located between the second wave plate 51723b and the seventh wave plate 51728. A second end of the first substrate 51721d may be sequentially connected to the fourth wave plate 51725, the fifth wave plate 51726b, and the sixth wave plate 51727b.

[0316] In some embodiments, the second wave plate 51723b can be a low-pass filter that allows low-frequency signals to pass through and blocks high-frequency signals from passing through. For example, the second wave plate 51723b can allow the third wavelength optical signal to be transmitted, and can also allow the first wavelength optical signal and the second wavelength optical signal to be reflected.

[0317] The second wave plate 51723b can serve as the first light output point of the first end of the wave splitting component 5172c, so that the third wavelength optical signal can be transmitted through the second wave plate 51723b.

[0318] In some embodiments, the third wave plate 51724b may allow the received optical signal to be reflected. For example, the third wave plate 51724b may allow the second wavelength optical signal to be reflected.

[0319] In some embodiments, the fifth wave plate 51726b may allow the received optical signal to be reflected. For example, the fifth wave plate 51726b may allow the first wavelength optical signal and the second wavelength optical signal to be reflected.

[0320] In some embodiments, the sixth wave plate 51727b can be a bandpass filter that allows signals within a certain frequency range to pass through and blocks signals of other frequencies from passing through. For example, the sixth wave plate 51727b can allow a first wavelength optical signal to be transmitted and can allow a second wavelength optical signal and a third wavelength optical signal to be reflected.

[0321] The sixth wave plate 51727b can serve as the second light output point of the second end of the wave splitting assembly 5172c, so that the first wavelength optical signal can be transmitted through the sixth wave plate 51727b.

[0322] The seventh wave plate 51728 can be located on the reflection light path of the sixth wave plate 51727b, so that the seventh wave plate 51728 can receive the received light signal reflected by the sixth wave plate 51727b.

[0323] In some embodiments, the seventh wave plate 51728 may be a high-pass filter that allows high-frequency signals to pass through and blocks low-frequency signals from passing through. For example, the seventh wave plate 51728 may allow the second wavelength optical signal to transmit and may allow the first wavelength optical signal and the third wavelength optical signal to reflect.

[0324] The seventh wave plate 51728 can serve as the third light output point of the first end of the wave splitting component 5172c, so that the second wavelength optical signal can be transmitted through the seventh wave plate 51728.

[0325] The first optical assembly 517b may include a first reflector 5173, a second reflector 5176, a third reflector 5175, a first filter 5177, a second filter 5178, and a third filter 5174. The first reflector 5173 may be positioned on the output optical path of the sixth wave plate 51727b to reflect the first wavelength optical signal transmitted through the sixth wave plate 51727b. The second reflector 5176 may be positioned on the output optical path of the second wave plate 51723b to reflect the third wavelength optical signal transmitted through the second wave plate 51723b. The third reflector 5175 may be positioned on the output optical path of the seventh wave plate 51728 to reflect the second wavelength optical signal transmitted through the seventh wave plate 51728. The first filter 5177 may be positioned on the reflected optical path of the second reflector 5176. The second filter 5178 may be positioned on the reflected optical path of the first reflector 5173. The third filter 5174 may be positioned on the output optical path of the seventh wave plate 51728. The third filter 5174 can be located between the seventh wave plate 51728 and the third reflector 5175 .

[0326] like Figure 13b As shown, the receiving optical path is as follows: the received optical signal is first collimated by the first lens 5171, then transmitted through the first wave plate 51722, and finally reflected by the fourth wave plate 51725 before entering the second wave plate 51723b. The third wavelength optical signal in the received optical signal is first transmitted through the second wave plate 51723b, then reflected by the second reflector 5176, and finally filtered by the first filter 5177 before entering the first optical receiving assembly 530. The first wavelength optical signal in the received optical signal is first reflected by the second wave plate 51723b, then reflected by the fifth wave plate 51726b and the fourth wave plate 51724b in sequence, then transmitted through the sixth wave plate 51727b, then reflected by the first reflector 5173, and finally filtered by the second filter 5178 before entering the second optical receiving assembly 520. The second wavelength optical signal in the received optical signal is first reflected by the second wave plate 51723b, the fifth wave plate 51726b, the third wave plate 51724b and the sixth wave plate 51727 in sequence, then transmitted by the seventh wave plate 51728, filtered again by the third filter 5174, and finally reflected by the third reflector 5175 before entering the third optical receiving component 540.

[0327] Except for the above-mentioned parts which are different from the first light receiving component, the rest of the parts are the same as the first light receiving component and will not be described again here.

[0328] The first light receiving component 530 , the second light receiving component 520 and the third light receiving component 540 in the above light receiving components can be arranged vertically relative to the optical axis of the transmitted light signal.

[0329] Figure 13c A partial optical path diagram of a fourth light receiving component provided according to some embodiments. Figure 13d FIG. 1 is a partial optical path diagram of a fifth light receiving component provided according to some embodiments. Figure 13c and Figure 13d As shown, in some embodiments, the optical receiving component 500 may include a first optical receiving assembly 530, a second optical receiving assembly 520, a third optical receiving assembly 540, and a first optical assembly. The first optical assembly can transmit the transmitted optical signal to the optical fiber adapter 700. The first optical assembly can also separate the received optical signal into a first wavelength optical signal, a second wavelength optical signal, and a third wavelength optical signal. The first wavelength optical signal, the second wavelength optical signal, and the third wavelength optical signal are respectively incident on the corresponding optical receiving assembly. For example, the first wavelength optical signal is incident on the second optical receiving assembly 520, the second wavelength optical signal is incident on the third optical receiving assembly 540, and the third wavelength optical signal is incident on the first optical receiving assembly 530.

[0330] like Figure 13c As shown, the first light receiving component is the first light component 517e. Figure 13d As shown, the first light receiving component is the first light component 517f.

[0331] like Figure 13c and Figure 13d As shown, the third light receiving component 540 can be tilted relative to the optical axis of the transmitted light signal, and the first light receiving component 530 can be vertically disposed relative to the optical axis of the transmitted light signal.

[0332] In some embodiments, the second light receiving component 520 may be disposed perpendicularly relative to the optical axis of the transmitted light signal.

[0333] In some embodiments, the second optical receiving component 520 may be tilted relative to the optical axis of the transmitted optical signal to receive the first wavelength optical signal as much as possible, thereby improving the coupling efficiency of the second optical receiving component 520 .

[0334] like Figure 13c and Figure 13dAs shown, in some embodiments, first optical component 517e and first optical component 517f may each include a filter assembly 5185. Filter assembly 5185 may be located in the light-emitting direction of optical emitting component 400 to allow the transmitted optical signal emitted by optical emitting component 400 to pass through before entering optical fiber adapter 700, and to receive the received optical signal transmitted by optical fiber adapter 700. Filter assembly 5185 is configured to separate the third wavelength optical signal from the received optical signal.

[0335] In some embodiments, both the first optical assembly 517e and the first optical assembly 517f may include a first optical filter 5184. The first optical filter 5184 may be located on the first outgoing optical path of the optical filter assembly 5185 to receive the third wavelength optical signal separated by the optical filter assembly 5185. The first optical filter 5184 may allow the third wavelength optical signal to be reflected. The first optical receiving assembly 530 may be located on the reflected optical path of the first optical filter 5184 so that the first optical receiving assembly 530 can receive the third wavelength optical signal reflected by the first filter 5184.

[0336] The optical filter component 5185 and the first optical filter 5184 cooperate with each other so that the third wavelength optical signal can be vertically incident on the first optical receiving component 530 .

[0337] In some embodiments, both the first optical component 517e and the first optical component 517f may include a second filter 5186. The second filter 5186 may be located on the second outgoing optical path of the filter component 5185 to receive the first wavelength optical signal and the second wavelength optical signal separated by the filter component 5185. The second filter 5186 may allow the first wavelength optical signal and the second wavelength optical signal to be reflected.

[0338] The second filter 5186 can be located in the light emitting direction of the light emitting component 400 so that the second filter 5186 can receive the emission light signal emitted by the light emitting component 400.

[0339] The second filter 5186 allows the transmission of the emission light signal. The second filter 5186 can be located between the light emitting component 400 and the filter assembly 5185 so that the emission light signal is transmitted through the second filter 5186 and then through the filter assembly 5185 to the fiber optic adapter 700 .

[0340] The filter assembly 5185 and the second filter 5186 cooperate to allow the first wavelength optical signal and the second wavelength optical signal to be obliquely incident on the third filter 5187, and also to transmit the transmitted optical signal to the fiber optic adapter. The second filter 5186 and the filter assembly 5185 are positioned away from the optical emitting component, so that the transmitted optical signal emitted by the optical emitting component 400 is transmitted to the fiber optic adapter 700 through the second filter 5186 and the filter assembly 5185.

[0341] In some embodiments, the first optical component 517e and the first optical component 517f may each include a third optical filter 5187. The third optical filter 5187 may be located in the reflected optical path of the second optical filter 5186, so that the third optical filter 5187 can receive the first wavelength optical signal and the second wavelength optical signal reflected by the second optical filter 5186.

[0342] The third optical filter 5187 can allow the first wavelength optical signal to pass through, and can also allow the second wavelength optical signal to reflect. The second optical receiving component 520 can be located in the transmission light path of the third optical filter 5187, so that the second optical receiving component 520 can receive the first wavelength optical signal transmitted by the third optical filter 5187. The third optical receiving component 540 can be located in the reflection light path of the third optical filter 5187, so that the third optical receiving component 540 can receive the second wavelength optical signal reflected by the third optical filter 5187.

[0343] The optical filter component 5185 , the second optical filter 5186 and the second optical receiving component 520 cooperate with each other so that the first wavelength optical signal can be vertically incident on the second optical receiving component 520 .

[0344] The filter assembly 5185 , the second filter 5186 , the third filter 5187 and the third optical receiving assembly 540 cooperate with each other so that the second wavelength optical signal can be vertically incident on the third optical receiving assembly 540 .

[0345] The distance between the center axis of the light outlet of the light emitting component and the center axis of the optical fiber adapter along the width direction of the light receiving component is less than a preset value. This preset value can be compensated by combining several filters so that the light signal emitted by the light emitting component is incident on the optical fiber adapter. Therefore, if Figure 13c As shown, in some embodiments, the distance between the central axis of the light outlet of the optical emitting component and the central axis of the optical fiber adapter along the width direction of the optical receiving component is less than a preset value, and the filter assembly 5185 can be a filter. The filter can allow the first wavelength and the second wavelength optical signal to pass through, and can also allow the third wavelength optical signal to be reflected.

[0346] like Figure 13cAs shown, the filter component 5185 is a filter, and the first light output path of the filter component 5185 is the reflection light path of the filter. Then the first filter 5184 can be located on the reflection light path of the filter so that the first filter 5184 can receive the third wavelength light signal reflected by the filter.

[0347] like Figure 13c As shown, the filter component 5185 is a filter, and the second light output path of the filter component 5185 is the transmission light path of the filter. Then the second filter 5186 can be located on the transmission light path of the filter, so that the second filter 5186 can receive the first wavelength light signal and the second wavelength light signal transmitted by the filter.

[0348] like Figure 13c As shown, the emission light path is as follows: the emission light signal is transmitted through the second filter 5186 and the filter assembly 5185 in sequence, and then coupled to the optical fiber adapter 700 through the first lens 5171.

[0349] The receiving optical path is as follows: The received optical signal is collimated by the first lens 5171 and then incident on the filter assembly 5185. The third wavelength optical signal in the received optical signal is first reflected by the filter assembly 5185, then reflected by the first filter 5184 to the first optical receiving assembly 530. The first wavelength optical signal in the received optical signal is first transmitted through the filter assembly 5185, then reflected by the second filter 5186, and finally transmitted through the third filter 5187 to the second optical receiving assembly 520. The second wavelength optical signal in the received optical signal is transmitted through the filter assembly 5185, then reflected by the second filter 5186, and finally reflected by the third filter 5187 to the third optical receiving assembly 540.

[0350] The distance between the center axis of the light outlet of the light emitting component and the center axis of the optical fiber adapter along the width direction of the light receiving component is greater than the preset value, which cannot be compensated by the combination of filters alone, so that the transmission light signal emitted by the light emitting component cannot be incident on the optical fiber adapter. Figure 13d As shown, in some embodiments, the first optical component 517f may include a filter component 5185. The filter component 5185 may be a combination of a second substrate and a plurality of wave plates, so that the filter component 5185 can transmit the emission light signal emitted by the optical emission component to the optical fiber adapter.

[0351] In some embodiments, the filter assembly 5185 can be disposed along the length of the light receiving component 500. The filter assembly 5185 can transmit the transmission light signal emitted by the light emitting component to the optical fiber adapter.

[0352] The first light input and output of the filter assembly 5185 can face the light emitting component to receive the transmitted light signal emitted by the light emitting component 400. The second light input and output of the filter assembly 5185 can face the fiber optic adapter to receive the received light signal transmitted by the fiber optic adapter 700. The first light input and output of the filter assembly 5185 and the second light input and output of the filter assembly 5185 are staggered along the width direction of the light receiving component 500, so that the filter assembly 5185 can transmit the transmitted light signal emitted by the light emitting component 400 to the fiber optic adapter 700.

[0353] The first reflective portion of the filter assembly 5185 can be disposed opposite the first light input and output portion of the filter assembly 5185, so that the transmitted optical signal can be reflected by the first reflective portion of the filter assembly 5185. The second reflective portion of the filter assembly 5185 can be located in the reflected optical path of the first reflective portion of the filter assembly 5185, so that the transmitted optical signal reflected by the first reflective portion of the filter assembly 5185 is reflected by the second reflective portion of the filter assembly 5185. The second light input and output portion of the filter assembly 5185 can be located in the reflected optical path of the second reflective portion of the filter assembly 5185, so that the second light input and output portion of the filter assembly 5185 can emit the transmitted optical signal reflected by the second reflective portion of the filter assembly 5185.

[0354] Similarly, the received optical signal is received through the second light input and output of the filter component 5185, reflected by the second reflective portion of the filter component 5185 and the first reflective portion of the filter component 5185 in sequence, and then emitted through the first light input and output of the filter component 5185.

[0355] In some embodiments, the filter assembly 5185 may include a second substrate 51851, which may be disposed along the length of the first housing 510. The first end of the second substrate 51851 may include a first end surface 51851a and a second end surface 51851b, with the first end surface 51851a and the second end surface 51851b connected. The second end surface 51851b may be located in the light-emitting direction of the fiber optic adapter 700. The second end of the second substrate 51851 may include a third end surface 51851c and a fourth end surface 51851d, with the third end surface 51851c and the fourth end surface 51851d connected. The third end surface 51851c may be located in the light-emitting direction of the optical emitting component 400. The first end surface 51851a and the third end surface 51851c may be disposed opposite each other, and the second end surface 51851b and the fourth end surface 51851d may be disposed opposite each other.

[0356] In some embodiments, the optical filter assembly 5185 may include an eighth wave plate 51852. The eighth wave plate 51852 may be connected to the first end surface 51851a of the second substrate 51851. The eighth wave plate 51852 may serve as a first reflective portion of the optical filter assembly 5185. The eighth wave plate 51852 may allow reflection of the transmitted optical signal, allow transmission of the third wavelength optical signal of the received optical signal, and allow reflection of the first wavelength optical signal and the second wavelength optical signal of the received optical signal.

[0357] In some embodiments, the optical filter assembly 5185 may include a ninth wave plate 51853. The ninth wave plate 51853 may face the optical fiber adapter 700. The ninth wave plate 51853 may be located in the output light path of the optical fiber adapter 700. The ninth wave plate 51853 may be connected to the second end surface 51851b of the second substrate 51851, so that the ninth wave plate 51853 may serve as the second light input and output port of the optical filter assembly 5185. The ninth wave plate 51853 may allow both transmitted optical signals and received optical signals to pass through.

[0358] The ninth wave plate 51853 is vertically arranged relative to the central axis of the light outlet of the light emitting component 400 so that the transmitted light signal is vertically emitted through the ninth wave plate 51853 and the received light signal is vertically incident on the ninth wave plate 51853 .

[0359] In some embodiments, the optical filter assembly 5185 may include a tenth wave plate 51854. The tenth wave plate 51854 may face the light emitting component 400. The tenth wave plate 51854 may be located in the outgoing light path of the light emitting component 400. The tenth wave plate 51854 may be connected to the third end surface 51851c of the second substrate 51851, so that the tenth wave plate 51854 may serve as the first light input and output port of the optical filter assembly 5185. The tenth wave plate 51854 may allow transmission of the transmitted optical signal, and may also allow transmission of the first wavelength optical signal and the second wavelength optical signal of the received optical signal.

[0360] The tenth wave plate 51854 is vertically arranged relative to the central axis of the light outlet of the light emitting component 400 so that the transmitting signal is vertically incident on the tenth wave plate 51854 and the received light signal is vertically emitted through the tenth wave plate 51854 .

[0361] In some embodiments, the optical filter assembly 5185 may include an eleventh wave plate 51855. The eleventh wave plate 51855 may be connected to the fourth end surface 51851d of the second substrate 51851. The eleventh wave plate 51855 may serve as a second reflective portion of the optical filter assembly 5185. The eleventh wave plate 51855 may be located in the reflective optical path of the eighth wave plate 51852, so that the eleventh wave plate 51855 can receive the transmitted optical signal reflected by the eighth wave plate 51852. The eleventh wave plate 51855 may allow reflection of the transmitted optical signal, may allow transmission of the third wavelength optical signal of the received optical signal, and may allow reflection of the first wavelength optical signal and the second wavelength optical signal of the received optical signal.

[0362] The eighth wave plate 51852 and the eleventh wave plate 51855 are both tilted relative to the central axis of the light outlet of the light emitting component 400 so that both the transmitted light signal and part of the received light signal can be reflected by the eighth wave plate 51852 and the eleventh wave plate 51855.

[0363] The transmission light path of the eighth wave plate 51852 or the transmission light path of the eleventh wave plate 51855 can serve as the first light output path of the filter component 5185 , so that the third wavelength optical signal can be transmitted through the eighth wave plate 51852 or the eleventh wave plate 51855 .

[0364] like Figure 13d As shown, the filter assembly 5185 is a combination of a second substrate and multiple wave plates. The first light output path of the filter assembly 5185 can be the transmission light path of the eighth wave plate 51825. Then the first filter 5184 can be located on the transmission light path of the eighth wave plate 51825 of the filter assembly 5185, so that the first filter 5184 can receive the third wavelength light signal transmitted by the eighth wave plate 51825 of the filter assembly 5185.

[0365] like Figure 13d As shown, the filter assembly 5185 is a combination of a second substrate and a plurality of wave plates. The first light output path of the filter assembly 5185 can be the transmission light path of the eleventh wave plate 51855. Then the first filter 5184 can be located on the transmission light path of the eleventh wave plate 51855 of the filter assembly 5185, so that the first filter 5184 can receive the third wavelength light signal transmitted by the eleventh wave plate 51855 of the filter assembly 5185.

[0366] The eleventh wave plate 51855 is closer to the light emitting component 400 than the eighth wave plate 51825. The transmission light path of the eleventh wave plate 51855 serves as the first light output light path of the filter component 5185. The first filter 5184 is closer to the light emitting component 400 than the filter component 5185. Then the first light receiving component 530 located on the reflection light path of the first filter 5184 is closer to the light emitting component 400 than the filter component 5185, which can effectively reduce the length of the light receiving component.

[0367] like Figure 13d As shown, the filter assembly 5185 is a combination of a second substrate and a plurality of wave plates. The second light output path of the filter assembly 5185 can be the transmission light path of the tenth wave plate 51854. Then the second filter 5186 can be located on the output light path of the tenth wave plate 51854 of the filter assembly 5185, so that the second filter 5186 can receive the first wavelength light signal and the second wavelength light signal transmitted through the tenth wave plate 51854.

[0368] like Figure 13d As shown, the emission light path is as follows: the emission light signal is first transmitted through the second filter 5186, then transmitted through the tenth wave plate 51854, then reflected again by the eighth wave plate 51852 and the eleventh wave plate 51855 in sequence, then transmitted through the ninth wave plate 51853, and finally coupled to the fiber optic adapter 700 through the first lens 5171.

[0369] The receiving optical path is as follows: the received optical signal is first collimated by the first lens 5171, then transmitted through the ninth wave plate 51853 of the filter assembly 5185, and then incident on the eleventh wave plate 51855 of the filter assembly 5185. The third wavelength optical signal in the received optical signal is first reflected by the eleventh wave plate 51855 of the filter assembly 5185, then reflected by the first filter 5184 to the first optical receiving assembly 530. The first and second wavelength optical signals in the received optical signal are sequentially reflected by the eleventh wave plate 51855 and the eighth wave plate 51852 of the filter assembly 5185, then transmitted through the tenth wave plate 51854, and then reflected by the second filter 5186. The first wavelength optical signal in the received optical signal is transmitted through the third filter 5187 to the second optical receiving assembly 520. The second wavelength optical signal in the received optical signal is reflected by the third filter 5187 to the third optical receiving assembly 540.

[0370] Except for the above-mentioned parts which are different from the first light receiving component, the rest of the parts are the same as the first light receiving component and will not be described again here.

[0371] Figure 13e FIG. 1 is a partial optical path diagram of a sixth light receiving component provided according to some embodiments. Figure 13eAs shown, in some embodiments, the optical receiving component 500 may include a first optical receiving assembly 530, a second optical receiving assembly 520, a third optical receiving assembly 540, and a first optical assembly 517d. The first optical assembly 517d can transmit the transmitted optical signal to the optical fiber adapter 700. The first optical assembly 517d can also separate the received optical signal into a first wavelength optical signal, a second wavelength optical signal, and a third wavelength optical signal. The first wavelength optical signal, the second wavelength optical signal, and the third wavelength optical signal are respectively incident on the corresponding optical receiving assembly. For example, the first wavelength optical signal is incident on the second optical receiving assembly 520, the second wavelength optical signal is incident on the third optical receiving assembly 540, and the third wavelength optical signal is incident on the first optical receiving assembly 530.

[0372] like Figure 13e As shown, the second light receiving component 520 and the third light receiving component 540 can be located on one side of the light receiving component 500, and the third light receiving component 540 is closer to the light emitting component relative to the second light receiving component 520, and the first light receiving component 530 can be located on the other side of the light receiving component 500, and the first light receiving component 530 is closer to the light emitting component relative to the second light receiving component 520.

[0373] In some embodiments, the first optical component 517d may include a fourth optical filter 5182. The fourth optical filter 5182 may be located in the light-emitting direction of the optical emitting component 400 and the light-emitting direction of the optical fiber adapter 700, so as to allow the transmitted optical signal emitted by the optical emitting component 400 to pass through and then be incident on the optical fiber adapter 700, and also to receive the received optical signal transmitted by the optical fiber adapter 700.

[0374] In some embodiments, the fourth optical filter 5182 may allow the second wavelength optical signal and the third wavelength optical signal to pass through, and may also allow the first wavelength optical signal to reflect.

[0375] In some embodiments, the first optical assembly 517d may include a fifth optical filter 5183. The fifth optical filter 5183 may be located in the reflected optical path of the fourth optical filter 5182 to receive the first wavelength optical signal reflected by the fourth optical filter 5182. The fifth optical filter 5183 may allow the first wavelength optical signal to be reflected. The second optical receiving assembly 520 may be located in the reflected optical path of the fifth optical filter 5183 to receive the first wavelength optical signal reflected by the fifth optical filter 5183.

[0376] The fourth filter 5182 and the fifth filter 5183 cooperate with each other to allow the first wavelength optical signal to be vertically incident on the second optical receiving component 520 .

[0377] In some embodiments, the fifth filter 5183 may be located between the fourth filter 5182 and the second optical receiving component 520 , so that the fifth filter 5183 can reflect the first wavelength optical signal reflected by the fourth filter 5182 to the second optical receiving component 520 .

[0378] In some embodiments, the fourth filter 5182 may be located between the fifth filter 5183 and the second optical receiving component 520 , so that the fifth filter 5183 may reflect the first wavelength optical signal reflected by the fourth filter 5182 to the second optical receiving component 520 .

[0379] The fourth filter 5182 may be located between the fifth filter 5183 and the second light receiving component 520, and may provide an accommodation space for the second light receiving component 520.

[0380] In some embodiments, the first optical component 517d may include a sixth optical filter 5181. The sixth optical filter 5181 may be located in the transmission optical path of the fourth optical filter 5182 to receive the second wavelength optical signal and the third wavelength optical signal transmitted by the fourth optical filter 5182. The sixth optical filter 5181 may allow the second wavelength optical signal to pass through, while also allowing the third wavelength optical signal to be reflected. The first optical receiving component 530 may be located in the reflection optical path of the sixth optical filter 5181, so that the first optical receiving component 530 can receive the third wavelength optical signal reflected by the sixth optical filter 5181.

[0381] The fourth filter 5182 and the sixth filter 5181 cooperate with each other to allow the third wavelength optical signal to be vertically incident on the first optical receiving component 530 .

[0382] The sixth filter 5181 can be located in the light emitting direction of the light emitting component 400 so that the sixth filter 5181 can receive the emission light signal emitted by the light emitting component 400 .

[0383] The sixth filter 5181 can allow the transmission of the transmitted light signal. The sixth filter 5181 can be located between the light emitting component 400 and the fourth filter 5182 so that the transmitted light signal is transmitted through the sixth filter 5181 and then enters the fourth filter 5182, and finally is transmitted through the fourth filter 5182 to the optical fiber adapter 700.

[0384] In some embodiments, the first optical assembly 517d may include a seventh optical filter 5179. The seventh optical filter 5179 may be located in the transmission optical path of the fourth optical filter 5182, so that the seventh optical filter 5179 can receive the second wavelength optical signal and the third wavelength optical signal transmitted by the fourth optical filter 5182. The seventh optical filter 5179 may allow the second wavelength optical signal to be reflected and the third wavelength optical signal to be transmitted. The third optical receiving assembly 540 may be located in the reflection optical path of the seventh optical filter 5179, so that the third optical receiving assembly 540 can receive the second wavelength optical signal reflected by the seventh optical filter 5179.

[0385] The seventh filter 5179 , the fourth filter 5182 and the sixth filter 5181 cooperate with each other to allow the second wavelength optical signal to be vertically incident on the third optical receiving component 540 .

[0386] The seventh filter 5179 can be located in the light emitting direction of the light emitting component 400 so that the seventh filter 5179 can receive the emission light signal emitted by the light emitting component 400.

[0387] The seventh filter 5179 can allow the transmission of the transmitted light signal. The seventh filter 5179 can be located between the light emitting component 400 and the fourth filter 5182 so that the transmitted light signal is transmitted through the seventh filter 5179 and then incident on the fourth filter 5182, and finally transmitted through the fourth filter 5182 to the optical fiber adapter 700.

[0388] In some embodiments, the seventh filter 5179 can be located between the light emitting component 400 and the sixth filter 5181, and the seventh filter 5179 is located on the transmission light path of the sixth filter 5181, so that the emitted light signal is transmitted to the optical fiber adapter 700 through the seventh filter 5179, the sixth filter 5181 and the fourth filter 5182 in sequence.

[0389] In some embodiments, the sixth filter 5181 can be located between the light emitting component 400 and the seventh filter 5179, and the sixth filter 5181 is located on the transmission light path of the seventh filter 5179, so that the transmitted light signal is transmitted to the optical fiber adapter 700 through the sixth filter 5181, the seventh filter 5179 and the fourth filter 5182 in sequence.

[0390] The sixth filter 5181 can be located between the light emitting component 400 and the seventh filter 5179 as an example to introduce the emission light path and the receiving light path. Figure 13e As shown, the transmission light path is as follows: the transmission light signal is transmitted through the seventh filter 5179 , the sixth filter 5181 and the fourth filter 5182 in sequence, and then coupled to the optical fiber adapter 700 through the first lens 5171 .

[0391] The receiving optical path is as follows: The received optical signal is collimated by the first lens 5171 and then incident on the fourth filter 5182. The first wavelength optical signal in the received optical signal is first reflected by the fourth filter 5182, then reflected by the fifth filter 5183 to the second optical receiving component 520. The second wavelength optical signal in the received optical signal is first transmitted by the fourth filter 5182, then transmitted by the sixth filter 5181, and finally reflected by the seventh filter 5179 to the third optical receiving component 540. The third wavelength optical signal in the received optical signal is first transmitted by the fourth filter 5182, then reflected by the sixth filter 5181 to the first optical receiving component 530.

[0392] Except for the above-mentioned parts which are different from the first light receiving component, the rest of the parts are the same as the first light receiving component and will not be described again here.

[0393] Figure 13f FIG. 1 is a partial optical path diagram of a seventh light receiving component provided according to some embodiments. Figure 13f As shown, in some embodiments, the optical receiving component 500 may include a first optical receiving component 530, a fourth optical receiving component 560, and a first optical component 517g. The first optical component 517g may include a wave splitter component 5172. The wave splitter component 5172 can transmit the transmitted optical signal. The wave splitter component 5172 can also split the received optical signal into a first wavelength optical signal, a second wavelength optical signal, and a third wavelength optical signal, and transmit them. The first wavelength optical signal, the second wavelength optical signal, and the third wavelength optical signal are respectively incident on the corresponding optical receiving components. For example, the first wavelength optical signal and the second wavelength optical signal are incident on the fourth optical receiving component 560, and the third wavelength optical signal is incident on the first optical receiving component 530.

[0394] The wavelength splitter component 5172 can be the wavelength splitter component 5172a, the wavelength splitter component 5172b, or the wavelength splitter component 5172c, which is not limited here. However, in this disclosure, the wavelength splitter component 5172 is taken as the wavelength splitter component 5172a to introduce the first optical component 517g.

[0395] like Figure 13f As shown, the fourth light receiving component 560 can be vertically arranged relative to the optical axis of the transmitted light signal, and the first light receiving component 530 can be vertically arranged relative to the optical axis of the transmitted light signal.

[0396] In some embodiments, the fourth optical receiving component 560 may include a first optical receiving chip 561 and a second optical receiving chip 562 . The first optical receiving chip 561 may receive a first wavelength optical signal, and the second optical receiving chip 562 may receive a second wavelength optical signal.

[0397] There is a gap between the first optical receiving chip 561 and the second optical receiving chip 562 so that the first optical receiving chip 561 can receive the first wavelength optical signal and the second optical receiving chip can receive the second wavelength optical signal, thereby reducing crosstalk between the first wavelength optical signal and the second wavelength optical signal.

[0398] The fourth optical receiving assembly 560 may include a third lens 563 and a fourth lens 564. The first optical receiving chip 561 may be located at the focal point of the third lens 563, so that the first optical receiving chip 561 can receive the first wavelength optical signal converged by the third lens 563. The second optical receiving chip 562 may be located at the focal point of the fourth lens 564, so that the second optical receiving chip 562 can receive the first wavelength optical signal converged by the fourth lens 564.

[0399] In some embodiments, the fourth optical receiving component 560 and the first optical receiving component 530 can be located at both ends of the wave splitting component 5172a, so that the fourth optical receiving component 560 and the first optical receiving component 530 can receive three optical signals of different wavelengths separated by the wave splitting component 5172a.

[0400] In some embodiments, the first light receiving component 530 and the fourth light receiving component 560 are located on different sides of the light receiving member 500 , which can reduce the length of the light receiving member.

[0401] The first optical receiving component 530 and the fourth optical receiving component 560 are located on different sides of the optical receiving component 500. The first optical receiving component 530 is farther away from the optical emitting component 400 than the fourth optical receiving component 560. Then the second optical receiving chip 562 is closer to the optical emitting component 400 than the first optical receiving chip 561, so that the first optical receiving chip 561 and the second optical receiving chip 562 can receive corresponding received optical signals.

[0402] like Figure 13f As shown, in some embodiments, the first light receiving assembly 530 and the fourth light receiving assembly 560 are located on the same side of the light receiving component 500 to shorten the width of the light receiving component 500. The first light receiving assembly 530 is farther away from the light emitting component 400 than the fourth light receiving assembly 560.

[0403] The first optical receiving component 530 and the fourth optical receiving component 560 are located on the same side of the optical receiving component 500. The first optical receiving component 530 is farther away from the optical emitting component 400 than the fourth optical receiving component 560. Then the first optical receiving chip 561 is closer to the optical emitting component 400 than the second optical receiving chip 562, so that the first optical receiving chip 561 and the second optical receiving chip 562 can receive corresponding received optical signals.

[0404] In some embodiments, the first optical assembly 517g may include a second reflector 5176 and a first filter 5177. The second reflector 5176 may be located in the light-emitting direction of the third wave plate 51724 of the wave splitting assembly 5172a, so that the second reflector 5176 can reflect the third wavelength optical signal transmitted by the third wave plate 51724. The first filter 5177 may be located in the reflected light path of the second reflector 5176, so that the first filter 5177 can filter the third wavelength optical signal reflected by the second reflector 5176.

[0405] In some embodiments, the first optical assembly 517g may include a fourth reflector 5188. The fourth reflector 5188 may be located in the transmission light path of the fifth wave plate 51726a so that the fourth reflector 5188 can receive the first wavelength optical signal transmitted by the fifth wave plate 51726a. The fourth reflector 5188 may be located in the transmission light path of the sixth wave plate 51727a so that the fourth reflector 5188 can receive the first wavelength optical signal transmitted by the sixth wave plate 51727a.

[0406] In some embodiments, the first optical assembly 517g may include a second filter 5178, which may be located on the reflected light path of the fourth reflector 5188. The third lens 563 may be located on the transmitted light path of the second filter 5178, so that the third lens 563 can receive the first wavelength optical signal filtered by the second filter 5178 and converge the first wavelength optical signal to the first optical receiving chip 561.

[0407] In some embodiments, the first optical assembly 517g may include a third filter 5174, which may be located on the reflected light path of the fourth reflector 5188. The fourth lens 564 may be located on the transmitted light path of the third filter 5174, so that the fourth lens 564 can receive the second wavelength optical signal filtered by the third filter 5174 and converge the second wavelength optical signal to the second optical receiving chip 562.

[0408] like Figure 13fAs shown, the receiving optical path is as follows: the received optical signal is first collimated by the first lens 5171, then transmitted through the first wave plate 51722, and then reflected by the fourth wave plate 51725 and the second wave plate 51723a in sequence before entering the fifth wave plate 51726a. The first wavelength optical signal in the received optical signal is first transmitted through the fifth wave plate 51726a, then reflected by the fourth reflector 5188, then filtered by the second filter 5178, and finally coupled to the first optical receiving chip 563 through the third lens 563. The third wavelength optical signal in the received optical signal is first reflected by the fifth wave plate 51726a, then transmitted through the third wave plate 51724a, then reflected by the second reflector 5176, and finally filtered by the first filter 5177 before entering the first optical receiving assembly 530. The second wavelength optical signal in the received optical signal is first reflected by the fifth wave plate 51726a and the third wave plate 51724a, then transmitted by the sixth wave plate 51727a, reflected by the fourth reflector 5188, filtered by the third filter 5174, and finally coupled to the second optical receiving chip 564 through the fourth lens 564.

[0409] Except for the above-mentioned parts which are different from the first light receiving component, the rest of the parts are the same as the first light receiving component and will not be described again here.

[0410] The first housings of the above-mentioned light receiving components can be obtained by adaptively modifying the first housing of the first light receiving component, and will not be described in detail here.

[0411] Figure 14a This is a structural diagram of a first light emitting component provided according to some embodiments. Figure 14b This is a structural diagram of a first light emitting component provided in accordance with some embodiments from another perspective. Figure 14c FIG1 is an exploded view of a first light emitting component provided according to some embodiments. Figure 14a 、 Figure 14b and Figure 14c As shown, in some embodiments, the light emitting component 400 may include a second cavity. The second cavity may be connected to one end of the first cavity.

[0412] In some embodiments, the second cavity may include a second cover plate 420 .

[0413] In some embodiments, the second cavity may include a second housing 410. A second cover 420 may cover the second housing 410 to form the second cavity.

[0414] In some embodiments, the second housing 410 may include a bottom plate 411. The bottom plate 411 may be used to support the device.

[0415] In some embodiments, the second housing 410 may include a first sidewall 412. The first sidewall 412 may be located at one end of the second housing 410. The bottom of the first sidewall 412 may be connected to the bottom plate 411.

[0416] In some embodiments, the second housing 410 may include a second sidewall 413. The second sidewall 413 may be located on a side of the first housing 510510. The bottom of the second sidewall 413 may be connected to the bottom plate 411. One end of the second sidewall 413 may be connected to one end of the second sidewall 413.

[0417] In some embodiments, the second housing 410 may include a third sidewall 414. The third sidewall 414 may be located at the other end of the first housing 510-510. The third sidewall 414 may be close to the circuit board 300. The bottom of the third sidewall 414 may be connected to the bottom plate 411. One end of the third sidewall 414 may be connected to the other end of the second sidewall 413.

[0418] In some embodiments, the second housing 410 may include a fourth sidewall 415. The fourth sidewall 415 may be located on a side of the first housing 510-510. The fourth sidewall 415 may be disposed opposite the second sidewall 413. The bottom of the fourth sidewall 415 may be connected to the bottom plate 411. One end of the fourth sidewall 415 may be connected to the other end of the third sidewall 414. The other end of the fourth sidewall 415 may be connected to the other end of the first sidewall 412.

[0419] The first side wall 412, the second side wall 413, the third side wall 414, and the fourth side wall 415 are sequentially connected and their bottoms are connected to the bottom plate 411 to form a second inner cavity. The tops of the first side wall 412, the second side wall 413, the third side wall 414, and the fourth side wall 415 are supported and connected to the second cover plate 420. In some embodiments, the second housing 410 is a housing integrally formed of a metal material.

[0420] In some embodiments, a sixth connection hole 4121 may be provided on the first side wall 412. The sixth connection hole 4121 communicates with the second inner cavity and serves as a light outlet of the second cavity, that is, the sixth connection hole 4121 is a light outlet of the light emitting component 400. The sixth connection hole 4121 connects to the first shell 510510, so that the second shell 410 communicates with the accommodating cavity 516 through the sixth connection hole 4121. Exemplarily, the other end of the connecting base 5101 is embedded with the sixth connection hole 4121. In some embodiments, a boss 4122 is provided on the outer side of the first side wall 412, one end of the sixth connection hole 4121 passes through the boss 4122, and the end of the connecting base 5101 is embedded with the connecting boss 4122.

[0421] In some implementations, two rows of pins may be provided on the third sidewall 414, each row of pins including a plurality of pins 430. The pins 430 on the third sidewall 414 are electrically connected to the circuit board 300 via corresponding flexible circuit boards.

[0422] In some embodiments, two rows of parallel pins may be provided on the fourth side wall 415, each row of pins including a plurality of pins 430. The pins 430 on the fourth side wall 415 are electrically connected to the circuit board 300 via corresponding flexible circuit boards.

[0423] Two rows of pins are respectively provided on the third side wall 414 and the fourth side wall 415, each row of pins includes a plurality of pins 430. For the convenience of description, the row of pins on the third side wall 414 and the fourth side wall 415 close to the bottom plate 411 is referred to as the bottom row of pins on the third side wall 414 and the fourth side wall 415; the pins 430 on the third side wall 414 and the pins 430 on the fourth side wall 415 are respectively electrically connected to the circuit board 300 through corresponding flexible circuit boards.

[0424] like Figure 14a 、 Figure 14b and Figure 14c As shown, in some embodiments, a first laser assembly 440 may be disposed in the second housing 410. The first laser assembly 440 may be located on a side wall of the second housing 410. The first laser assembly 440 may generate a fourth wavelength optical signal.

[0425] like Figure 14a 、 Figure 14b and Figure 14c As shown, in some embodiments, a second laser assembly 450 may be disposed in the second housing 410. The second laser assembly 450 may be located on a side wall of the second housing 410. The second laser assembly 450 may generate an optical signal of a fifth wavelength.

[0426] like Figure 14a 、 Figure 14b and Figure 14c As shown, in some embodiments, a third laser assembly 460 may be disposed in the second housing 410. The third laser assembly 460 may be located on a side of a side wall of the second housing 410. The third laser assembly 460 may generate a sixth wavelength optical signal.

[0427] In some embodiments, the first laser assembly 440 , the second laser assembly 450 , and the third laser assembly 460 are all located on a side of the third sidewall 414 , such that the first laser assembly 440 , the second laser assembly 450 , and the third laser assembly 460 are arranged in a row.

[0428] In some embodiments, the first laser assembly 440 is located on the sides of the second side wall 413 and the third side wall 414; the second laser assembly 450 and the third laser assembly 460 are located on the side of the fourth side wall 415, and the third laser assembly 460 is located on the side of the second laser assembly 450 away from the third side wall 414, and the third laser assembly 460 is located on the side of the first side wall 412, so that the first laser assembly 440, the second laser assembly 450 and the third laser assembly 460 are distributed on the sides of two connected side walls on the second shell 410, thereby making the first laser assembly 440, the second laser assembly 450 and the third laser assembly 460 in a triangular distribution state instead of being arranged in a row, so as to reduce the packaging volume of the light emitting component 400.

[0429] In some embodiments, the third sidewall 414 is disposed along the width direction of the second housing 410, and the fourth sidewall is disposed along the length direction of the second housing 410. This allows the first laser assembly 440 to be disposed within the width direction of the second housing 410, thereby reducing the width dimension of the second housing 410. The second laser assembly 450 and the third laser assembly 460 are disposed within the length direction of the second housing 410, in conjunction with the first laser assembly 440 disposed within the width direction of the second housing 410. This allows sufficient laser assemblies to be disposed within the second housing 410, while reducing the overall dimension of the second housing 410 and, consequently, the dimension of the light-emitting component 400.

[0430] In some embodiments, the first laser assembly 440, the second laser assembly 450, and the third laser assembly 460 have different transmission rates. For example, the transmission rate of the first laser assembly 440 is greater than the transmission rate of the second laser assembly 450, and the transmission rate of the second laser assembly 450 is greater than the transmission rate of the third laser assembly 460. For example, the transmission rate of the first laser assembly 440 is 50G, the transmission rate of the second laser assembly 450 is 10G, and the transmission rate of the third laser assembly 460 is 2.5G.

[0431] In some embodiments, the second housing 410 may be provided with a combining component that can combine the fourth wavelength optical signal, the fifth wavelength optical signal, and the sixth wavelength optical signal into a single transmit optical signal.

[0432] In some embodiments, the wavelength division multiplexer can be a wavelength division multiplexer. The input side of the wavelength division multiplexer faces the first laser assembly 440, the second laser assembly 450, and the third laser assembly 460, and the output side of the wavelength division multiplexer faces the sixth connection hole 4121. The wavelength division multiplexer combines the optical signals of the first wavelength, the second wavelength, and the third wavelength emitted by the first laser assembly 440, the second laser assembly 450, and the third laser assembly 460 into a single transmitted optical signal.

[0433] In some embodiments, the combining assembly includes a polarization assembly and a polarization combining assembly. The polarization assembly is used to adjust the polarization direction of the optical signal, and the polarization combining assembly combines multiple polarized light beams into a single beam. The polarization assembly adjusts the polarization direction of the optical signal, and then the polarization combining assembly combines the multiple polarized light beams into a single beam, thereby achieving wave combining in the optical emitting component.

[0434] The above two types of multiplexing modules are applicable to the case where the first laser module 440 , the second laser module 450 and the third laser module 460 are arranged in a row.

[0435] In some embodiments, the wavelength combining component includes a plurality of optical filters, and the plurality of optical filters cooperate with each other to combine the fourth wavelength optical signal, the fifth wavelength optical signal, and the sixth wavelength optical signal into a beam of transmitted optical signal.

[0436] The multiplexer component composed of multiple filters is not only applicable to the situation where the first laser component 440, the second laser component 450 and the third laser component 460 are arranged in a row, but also applicable to the situation where the first laser component 440, the second laser component 450 and the third laser component 460 are distributed in a triangle.

[0437] In some embodiments, the multiplexing assembly may include an eighth optical filter 416. The eighth optical filter 416 may be disposed on the side of the sixth connection hole 4121. The eighth optical filter 416 is located in the output optical path of the first laser assembly 440, the second laser assembly 450, and the third laser assembly 460. The eighth optical filter 416 may be used to transmit the fourth wavelength optical signal and the fifth wavelength optical signal, and may also be used to reflect the sixth wavelength optical signal.

[0438] In some embodiments, the wavelength combining assembly may include a ninth optical filter 417. The ninth optical filter 417 may be disposed on the side of the sixth connection hole 4121. The ninth optical filter 417 may be located in the output optical path of the first laser assembly 440, the second laser assembly 450, and the third laser assembly 460. The ninth optical filter 417 may be disposed side by side with the eighth optical filter 416. The ninth optical filter 417 may be configured to transmit the fourth wavelength optical signal and reflect the fifth wavelength optical signal.

[0439] The eighth filter 416 and the ninth filter 417 are both arranged on the side of the sixth connecting hole 4121 and are both located on the output optical path of the first laser assembly 440, the second laser assembly 450 and the third laser assembly 460. The eighth filter 416 and the ninth filter 417 are arranged side by side to change the transmission optical path of the fourth wavelength optical signal, the fifth wavelength optical signal and the sixth wavelength optical signal, so that the fourth wavelength optical signal, the fifth wavelength optical signal and the sixth wavelength optical signal can pass through the sixth connecting hole 4121.

[0440] In some embodiments, the eighth filter 416 and the ninth filter 417 are arranged on the side where the first side wall 412 and the second side wall 413 are connected, so that the eighth filter 416, the ninth filter 417 and the first laser assembly 440 are arranged compactly, which facilitates controlling the length direction of the second shell 410.

[0441] In some embodiments, the eighth optical filter 416 is disposed at the intersection of the output optical paths of the first laser assembly 440 and the third laser assembly 460, and the ninth optical filter 417 is disposed at the intersection of the output optical paths of the first laser assembly 440 and the second laser assembly 450. The first laser assembly 440 is located on the transmissive side of the ninth optical filter 417, the second laser assembly 450 is located on the reflective side of the ninth optical filter 417, and the third laser assembly 460 is located on the reflective side of the eighth optical filter 416. Exemplarily, the eighth optical filter 416 includes a first optical surface and a second optical surface, which are the primary optical surfaces of the eighth optical filter 416. The ninth optical filter 417 includes a third optical surface and a fourth optical surface, which are the primary optical surfaces of the ninth optical filter 417. The first optical surface faces the third laser assembly 460, the second optical surface faces the ninth filter 417, the third optical surface faces the second laser assembly 450, and the fourth optical surface faces the first laser assembly 440.

[0442] In some embodiments, a lens 418 may be disposed within the second housing 410. The lens 418 may be disposed on the optical path from the first laser assembly 440, the second laser assembly 450, and the third laser assembly 460 to the eighth filter 416 or the ninth filter 417. For example, a fifth lens 4181 is disposed on the optical path from the first laser assembly 440 to the ninth filter 417 to collimate the fourth wavelength optical signal; a sixth lens 4182 is disposed on the optical path from the second laser assembly 450 to the ninth filter 417 to collimate the fifth wavelength optical signal; and a seventh lens 4183 is disposed on the optical path from the third laser assembly 460 to the eighth filter 416 to collimate the sixth wavelength optical signal.

[0443] Figure 14d FIG. 1 is a light path diagram of a first light emitting component according to some embodiments. Figure 14dAs shown, the fourth wavelength optical signal generated by the first laser assembly 440 is transmitted to the fifth lens 4181, collimated by the fifth lens 4181, and then transmitted to the ninth filter 417. It is transmitted through the ninth filter 417 to the eighth filter 416, and then transmitted to the sixth connection hole 4121 through the eighth filter 416; the fifth wavelength optical signal generated by the second laser assembly 450 is transmitted to the sixth lens 4182, collimated by the sixth lens 4182, and then transmitted to the ninth filter 417. It is reflected by the ninth filter 417 and then transmitted to the eighth filter 416. It is transmitted to the sixth connection hole 4121 through the eighth filter 416; the sixth wavelength optical signal generated by the third laser assembly 460 is transmitted to the seventh lens 4183, collimated by the seventh lens 4183, and then transmitted to the eighth filter 416. It is reflected by the eighth filter 416 and then transmitted to the sixth connection hole 4121. The eighth optical filter 416 and the ninth optical filter 417 allow the fourth wavelength optical signal, the fifth wavelength optical signal, and the sixth wavelength optical signal to have a common optical path when outputting from the second housing 410 .

[0444] Figure 15a FIG. 1 is a structural diagram of a second light emitting component provided according to some embodiments. Figure 15a As shown, in some embodiments, the light emitting component 400 may include a second cavity that is connected to the light receiving component 500 so that the light signal emitted by the light emitting component 400 can be incident on the light receiving component 500 .

[0445] In some embodiments, the optical transmission component 400 may include a first optical transmission assembly 402 , which may transmit an optical signal at a fourth wavelength.

[0446] In some embodiments, the optical transmission component 400 may include a second optical transmission assembly 401. The second optical transmission assembly may transmit an optical signal at a fifth wavelength.

[0447] In some embodiments, the optical transmission component 400 may include a third optical transmission component 403. The third optical transmission component 403 may transmit an optical signal of a sixth wavelength.

[0448] The optical emitting component 400 may include a first optical emitting assembly 402 , a second optical emitting assembly 401 and a third optical emitting assembly 403 , so that the optical emitting component 400 may emit optical signals of three wavelengths with different rates.

[0449] In some embodiments, the first optical transmitter assembly 402, the second optical transmitter assembly 401, and the third optical transmitter assembly 403 can be coaxially packaged. Exemplarily, the emission optical axes of the first optical transmitter assembly 402, the second optical transmitter assembly 401, and the third optical transmitter assembly 403 are parallel to each other. Specifically, the first optical transmitter assembly 402, the second optical transmitter assembly 401, and the third optical transmitter assembly 403 each include a transmitter cap and a transmitter base. The transmitter cap is mounted on the transmitter base to form a transmitter cavity. A laser chip is disposed within the transmitter cavity to transmit optical signals.

[0450] The transmitter socket is also equipped with a transmitter pin, one end of which is connected to the circuit board 300 via the flexible circuit board 900, thereby electrically connecting the transmitter pin and the circuit board 300. The transmitter pin extends upward from the bottom of the transmitter socket until it extends beyond the top of the transmitter socket, where it is wired to the pad where the laser chip is located, thus electrically connecting the transmitter pin and the laser chip. This allows the electrical signal from the circuit board 300 to be transmitted to the laser chip via the transmitter pin.

[0451] In some embodiments, any two of the first light emitting assembly 402, the second light emitting assembly 401, and the third light emitting assembly 403 are located on one side wall of the light emitting component, and the remaining light emitting assembly is located on the other side wall of the light emitting component. For example, the first light emitting assembly 402 and the second light emitting assembly 401 can be located on the third side wall of the light emitting component 400, and the third light emitting assembly 403 can be located on the fourth side wall of the light emitting component 400; the first light emitting assembly 402 can be located on the third side wall of the light emitting component 400, and the second light emitting assembly 401 and the third light emitting assembly 403 can both be located on any outer wall of the light emitting component 400 that is connected to the third side wall. The outer wall can be the cover 420 or the bottom plate 411 of the first housing 410, or the second or fourth side wall.

[0452] In some embodiments, the first light emitting assembly 402, the second light emitting assembly 401, and the third light emitting assembly 403 can be respectively located on different outer walls of the light emitting component 400 to reduce the size of the light emitting component 400. For example, the first light emitting assembly 402 can be located on the third side wall of the light emitting component 400, the second light emitting assembly 401 can be located on the second side wall of the light emitting component 400, and the third light emitting assembly 403 can be located on the fourth side wall of the light emitting component 400.

[0453] Figure 15b Decomposition of the second light emitting component according to some embodiments Figure 1 . Figure 15c Decomposition of the second light emitting component according to some embodiments Figure 2 .like Figure 15b and Figure 15cAs shown, in some embodiments, the second cavity may include a sixth connection hole 4121. The sixth connection hole 4121 may traverse a side wall of the second cavity near the light receiving component 500, so that the optical signal in the second cavity can be transmitted to the light receiving component 500 through the sixth connection hole 4121.

[0454] In some embodiments, the second cavity may include a seventh connection hole 4131 . The seventh connection hole 4131 may be used to insert the second light emitting assembly 401 so as to connect the second light emitting assembly 401 to the second cavity. For example, the second light emitting assembly 401 is located in the seventh connection hole 4131 .

[0455] In some embodiments, the second cavity may include an eighth connection hole 4145 . The eighth connection hole 4145 may be used to insert the first light emitting assembly 402 so as to connect the first light emitting assembly 402 to the second cavity. For example, the first light emitting assembly 402 is located in the eighth connection hole 4145 .

[0456] In some embodiments, the second cavity may include a ninth connection hole 4151 . The ninth connection hole 4151 may be used to insert the third light emitting assembly 403 so as to connect the third light emitting assembly 403 to the second cavity. For example, the third light emitting assembly 403 is located in the ninth connection hole 4151 .

[0457] The seventh connection hole 4131, the eighth connection hole 4145, and the ninth connection hole 4151 are respectively located on different side walls of the second cavity to reduce the size of the second cavity. For example, the seventh connection hole 4131 is located on the second side wall of the second cavity, the eighth connection hole 4145 is located on the third side wall of the second cavity, and the ninth connection hole 4151 is located on the fourth side wall of the second cavity.

[0458] like Figure 15b and Figure 15c As shown, in some embodiments, the second cavity may include a second cover plate 420 .

[0459] like Figure 15b and Figure 15c As shown, in some embodiments, the second cavity may include a second housing 410. A second cover plate 420 may be attached to the second housing 410 to form the second cavity. A second optical component 404 may be disposed within the second cavity. The second optical component 404 may transmit the fourth wavelength optical signal, the fifth wavelength optical signal, and the sixth wavelength optical signal.

[0460] Figure 16a FIG. 1 is a partially exploded view of a second light emitting component provided according to some embodiments. Figure 16b FIG. 1 is a partial cross-sectional view of a second light emitting component provided according to some embodiments. Figure 17FIG. 1 is a light path diagram of a second light emitting component according to some embodiments. Figure 16a 、 Figure 16b and Figure 17 As shown, in some embodiments, the second optical component 404 may include a second optical component 404 a , and the second optical component 404 a may include a first reflective-transmissive sheet 4043 .

[0461] The first reflective-transmissive plate 4043 allows the fourth wavelength optical signal to pass through. The first reflective-transmissive plate 4043 can be located on the output optical path of the first optical transmission component 402 so that the fourth wavelength optical signal emitted by the first optical transmission component 402 can pass through the first reflective-transmissive plate 4043 .

[0462] The first reflective-transmissive plate 4043 can allow the fifth wavelength optical signal to be reflected. The first reflective-transmissive plate 4043 can be located on the output optical path of the second optical transmission component 401 so that the fifth wavelength optical signal emitted by the second optical transmission component 401 is reflected by the first reflective-transmissive plate 4043 .

[0463] like Figure 16a 、 Figure 16b and Figure 17 As shown, in some embodiments, the second optical component 404a may include a second reflective-transmissive sheet 4042 .

[0464] The second reflective-transmissive plate 4042 allows the fourth wavelength optical signal to pass through. The second reflective-transmissive plate 4042 can be located on the transmission light path of the first reflective-transmissive plate 4043 so that the fourth wavelength optical signal transmitted through the first reflective-transmissive plate 4043 can be transmitted out through the first reflective-transmissive plate 4043.

[0465] The second reflective-transmissive plate 4042 allows the fifth wavelength optical signal to pass through and can be located on the reflection light path of the first reflective-transmissive plate 4043 so that the fifth wavelength optical signal reflected by the first reflective-transmissive plate 4043 can be transmitted through the second reflective-transmissive plate 4042 .

[0466] The second reflective transmissive sheet 4042 allows the sixth wavelength optical signal to be reflected and can be located in the light emitting direction of the third optical emitting assembly 403 so that the sixth wavelength optical signal emitted by the third optical emitting assembly 403 is reflected by the second reflective transmissive sheet 4042 .

[0467] like Figure 15c and Figure 17 As shown, in some embodiments, the second housing 410 may include a bottom plate 411. The bottom plate 411 may be used to support the device.

[0468] like Figure 15c and Figure 17 As shown, in some embodiments, the second housing 410 may include a first sidewall 412. The bottom of the first sidewall 412 may be connected to the bottom plate 411. The first sidewall 412 may be connected to the light receiving component 500. The first sidewall 412 may have a sixth connection hole 4121. The sixth connection hole 4121 may pass through the first sidewall 412. The sixth connection hole 4121 may communicate with the inner cavity of the second cavity, thereby allowing the transmission light signal emitted by the light emitting component 400 to be transmitted to the light receiving component 500 through the sixth connection hole 4121.

[0469] like Figure 15c and Figure 17 As shown, in some embodiments, the second housing 410 may include a second sidewall 413. The bottom of the second sidewall 413 may be connected to the bottom plate 411. One end of the second sidewall 413 may be connected to one end of the first sidewall 412. The second sidewall 413 may have a seventh connection hole 4131. The seventh connection hole 4131 may pass through the second sidewall 413. The seventh connection hole 4131 may communicate with the inner cavity of the second cavity, so that the fifth wavelength optical signal emitted by the second optical transmission assembly 401 located in the seventh connection hole 4131 can be incident on the inner cavity of the second cavity.

[0470] In some embodiments, the seventh connection hole 4131 may face one side of the first reflective-transmissive sheet 4043 , so that the optical signal of the fifth wavelength emitted by the second optical transmission assembly 401 may be reflected by the first reflective-transmissive sheet 4043 .

[0471] like Figure 15c and Figure 17 As shown, in some embodiments, the second housing 410 may include a third sidewall 414. The bottom of the third sidewall 414 may be connected to the base plate. One end of the third sidewall 414 may be connected to the other end of the second sidewall 413. The third sidewall 414 is disposed opposite the first sidewall 412. The third sidewall 414 may have an eighth connection hole 4145. The eighth connection hole 4145 may extend through the third sidewall 414. The eighth connection hole 4145 may communicate with the inner cavity of the second cavity, so that the fourth wavelength optical signal emitted by the first optical transmission assembly 402 located in the eighth connection hole 4145 can be incident on the inner cavity of the second cavity.

[0472] In some embodiments, the eighth connection hole 4145 may face the other side of the first reflective-transmissive sheet 4043 , so that the fourth wavelength optical signal emitted by the first optical transmission assembly 402 can be incident on the first reflective-transmissive sheet 4043 .

[0473] In some embodiments, one surface of the first reflective-transmissive sheet 4043 is disposed opposite to the other surface of the first reflective-transmissive sheet 4043 , so that the fourth wavelength optical signal incident on the first reflective-transmissive sheet 4043 can be transmitted out.

[0474] like Figure 15c and Figure 17 As shown, in some embodiments, the second housing 410 may include a fourth sidewall 415. The bottom of the fourth sidewall 415 may be connected to the base plate. One end of the fourth sidewall 415 may be connected to the other end of the third sidewall 414. The other end of the fourth sidewall 415 may be connected to the other end of the first sidewall 412. The fourth sidewall 415 may be disposed opposite the second sidewall 413. The fourth sidewall 415 may have a ninth connection hole 4151. The ninth connection hole 4151 may extend through the fourth sidewall 415. The ninth connection hole 4151 may communicate with the inner cavity of the second cavity, so that the optical signal emitted by the optical transmission assembly placed in the ninth connection hole 4151 can be incident on the inner cavity of the second cavity. For example, the optical signal of the sixth wavelength emitted by the third optical transmission assembly 403 is incident on the inner cavity of the second cavity.

[0475] In some embodiments, the ninth connection hole 4151 may face one side of the second reflective-transmissive sheet 4042 , so that the sixth wavelength optical signal emitted by the third optical transmission assembly 403 placed in the ninth connection hole 4151 may be reflected by the second reflective-transmissive sheet 4042 .

[0476] In some embodiments, the first reflective-transmissive plate 4043 may face the other side of the second reflective-transmissive plate 4042 so that the fifth wavelength optical signal reflected by the first reflective-transmissive plate 4043 and the fourth wavelength optical signal transmitted by the first reflective-transmissive plate 4043 may be incident on the second reflective-transmissive plate 4042 .

[0477] In some embodiments, one surface of the second reflective-transmissive sheet 4042 is disposed opposite to the other surface of the second reflective-transmissive sheet 4042 , so that the fourth wavelength optical signal and the fifth wavelength optical signal incident on the second reflective-transmissive sheet 4042 can be transmitted out.

[0478] The first side wall 412 , the second side wall 413 , the third side wall 414 and the fourth side wall 415 are sequentially connected and respectively connected to the bottom plate 411 to form a second housing 410 having an opening. The opening of the second housing 410 may face the lower housing 202 .

[0479] like Figure 15c 、 Figure 16b and Figure 17As shown, in some embodiments, the vertical distance between the second end of the first reflective-transmissive sheet 4043 and the second side wall 413 is smaller than the vertical distance between the first end of the first reflective-transmissive sheet 4043 and the second side wall 413, so that the first reflective-transmissive sheet 4043 and the second side wall 413 are arranged at an angle, thereby allowing the second wavelength emitted by the second light emitting assembly 401 located on the second side wall 413 to be reflected by the first reflective-transmissive sheet 4043. The end of the first reflective-transmissive sheet 4043 away from the first light emitting assembly 402 is the first end of the first reflective-transmissive sheet 4043, and the end of the first reflective-transmissive sheet 4043 close to the first light emitting assembly 402 is the second end of the first reflective-transmissive sheet 4043.

[0480] In some embodiments, the inclination angle between the first reflective-transmissive sheet 4043 and the second sidewall 413 is 45°, so that the second wavelength emitted by the second light emitting assembly 401 can be reflected by the first reflective-transmissive sheet 4043 and then emitted along the length direction of the second housing 410 .

[0481] like Figure 15c 、 Figure 16b and Figure 17 As shown, in some embodiments, the vertical distance between the second end of the second reflective-transmissive sheet 4042 and the fourth sidewall 415 is smaller than the vertical distance between the first end of the second reflective-transmissive sheet 4042 and the fourth sidewall 415, so that the second reflective-transmissive sheet 4042 and the fourth sidewall 415 are arranged at an angle, thereby allowing the third wavelength emitted by the third light emitting assembly 403 located on the fourth sidewall 415 to be reflected by the second reflective-transmissive sheet 4042. The end of the second reflective-transmissive sheet 4042 away from the first light emitting assembly 402 is the first end of the second reflective-transmissive sheet 4042, and the end of the second reflective-transmissive sheet 4042 close to the first light emitting assembly 402 is the second end of the second reflective-transmissive sheet 4042.

[0482] In some embodiments, the inclination angle between the second reflective-transmissive sheet 4042 and the fourth sidewall 415 is 45°, so that the third wavelength emitted by the third light emitting assembly 403 can be reflected by the second reflective-transmissive sheet 4042 and then emitted along the length direction of the second housing 410 .

[0483] The second reflective transmissive sheet 4042 and the fourth side wall 415 have an inclination angle of 45°, and the first reflective transmissive sheet 4043 and the second side wall 413 have an inclination angle of 45°, so that the angle between the first reflective transmissive sheet 4043 and the second reflective transmissive sheet 4042 is a right angle, i.e., 90°.

[0484] like Figure 16a 、 Figure 16b and Figure 17As shown, in some embodiments, the second optical component 404a may include a fixing member 4041. The fixing member 4041 may include a first connection surface 40414. The first connection surface 40414 may be disposed adjacent to the second sidewall 413. The first connection surface 40414 may be disposed parallel to the second sidewall 413 so that the fifth wavelength optical signal emitted by the second optical transmission component 401 is perpendicularly incident on the first connection surface 40414.

[0485] In some embodiments, the first connecting surface 40414 may have a second light hole 40413, and the second light hole 40413 may be located in the light emitting direction of the second optical transmission component 401, so that the fifth wavelength optical signal incident on the fixing member 4041 can be transmitted through the second light hole 40413.

[0486] like Figure 16a 、 Figure 16b and Figure 17 As shown, in some embodiments, the fixing member 4041 may include a second connecting surface 40415. One end of the second connecting surface 40415 may be connected to one end of the first connecting surface 40414. The second connecting surface 40415 may be connected to the first reflective-transmissive sheet 4043. The second connecting surface 40415 may be arranged at an angle relative to the second sidewall 413, so that the first reflective-transmissive sheet 4043 is arranged at an angle relative to the second sidewall 413.

[0487] In some embodiments, the second connecting surface 40415 may have a third light hole 40411, and the third light hole 40411 may be located in the light emitting direction of the first optical transmission component 402, so that the fourth wavelength optical signal transmitted through the first reflective transmission plate 4043 is incident on the fixing member 4041 and then transmitted along the third light hole 40411.

[0488] In some embodiments, the third light hole 40411 can be connected to the second light hole 40413, so that the fifth wavelength optical signal passes through the second light hole 40413 and the third light hole 40411 in sequence and is incident on the first reflective transmissive plate 4043 and reflected by the first reflective transmissive plate 4043.

[0489] like Figure 16a 、 Figure 16b and Figure 17 As shown, in some embodiments, the fixing member 4041 may include a third connecting surface 40416. One end of the third connecting surface 40416 may be connected to the other end of the second connecting surface 40415. The other end of the third connecting surface 40416 may be connected to the other end of the first connecting surface 40414. The third connecting surface 40416 may be connected to the second reflective-transmissive sheet 4042. The third connecting surface 40416 may be arranged at an angle relative to the fourth sidewall 415, so that the second reflective-transmissive sheet 4042 is arranged at an angle relative to the fourth sidewall 415.

[0490] In some embodiments, the second connecting surface 40415 may have a fourth light hole 40412, and the fourth light hole 40412 may be connected to the second light hole 40413 and the third light hole 40411, so that the fifth wavelength optical signal and the fourth wavelength optical signal transmitted through the third light hole 40411 can be transmitted out through the fourth light hole 40412.

[0491] like Figure 17 As shown, in some embodiments, the first light emitting assembly 402 , the second light emitting assembly 401 and the third light emitting assembly 403 can be respectively located on different side walls of the light emitting component 400 , and the first light emitting assembly 402 can be located on the third side wall 414 of the second shell 410 .

[0492] In some embodiments, the second light emitting component 401 can be located on the second side wall 413 of the second shell body 410, and the third light emitting component 403 can be located on the fourth side wall 415 of the second shell body 410. The second side wall 413 of the second shell body 410 and the fourth side wall 415 of the second shell body 410 are respectively connected to the third side wall 414 of the second shell body 410, so that the second light emitting component 401 and the third light emitting component 403 can be arranged up and down along the first light emitting component 402.

[0493] In some embodiments, the second light emitting assembly 401 can be located on the bottom plate 411 of the second shell 410, and the third light emitting assembly 403 can be located on the second cover 420. The bottom plate 411 and the second cover 420 of the second shell 410 are respectively connected to the third side wall 414 of the second shell 410. The bottom plate 411 and the second cover 420 of the second shell 410 are arranged relative to each other so that the second light emitting assembly 401 and the third light emitting assembly 403 can be arranged inside and outside the first light emitting assembly 402.

[0494] like Figure 17 As shown, the transmission optical path is as follows: the fourth wavelength optical signal is emitted through the first optical transmission component 402, and is emitted after being transmitted through the first reflection-transmission plate 4043 and the second reflection-transmission plate 4042; the fifth wavelength optical signal is emitted through the second optical transmission component 401, reflected by the first reflection-transmission plate 4043, and is emitted after being transmitted through the second reflection-transmission plate 4042; the sixth wavelength optical signal is emitted through the third optical transmission component 403, and is emitted after being reflected through the second reflection-transmission plate 4042.

[0495] The coupling margin of the fourth wavelength optical signal is smaller than that of the fifth wavelength optical signal and the sixth wavelength optical signal. The fourth wavelength optical signal emitted by the first optical transmitting assembly 402 is sequentially transmitted through the first reflective and transmissive plate 4043 and the second reflective and transmissive plate 4042 before being emitted to improve coupling efficiency.

[0496] Figure 18 FIG. 1 is a light path diagram of a third light emitting component according to some embodiments. Figure 18 As shown, in some embodiments, the first light emitting assembly 402 and the second light emitting assembly 401 can both be located on the third side wall 414 of the second housing 410, and the third light emitting assembly 403 can be located on a side wall of the second housing 410 connected to the third side wall 414. For example, the third light emitting assembly 403 can be located on the fourth side wall 415 of the second housing 410.

[0497] In some embodiments, the second optical component 404 may include a second optical component 404b, which may include a first reflective-transmissive sheet 4043, a second reflective-transmissive sheet 4042, and a fifth reflective sheet 4044. The fifth reflective sheet 4044 may be located in the light-emitting direction of the second optical transmission component 401, so that the fifth wavelength optical signal emitted by the second optical transmission component 401 is reflected by the fifth reflective sheet 4044. The first reflective-transmissive sheet 4043 may be located in the reflected light path of the fifth reflective sheet 4044, so that the optical signal emitted by the second optical transmission component 401 can be incident on the first reflective-transmissive sheet 4043 after being reflected by the fifth reflective sheet 4044.

[0498] In some embodiments, the second optical component 404b may include a fixing member 4041, and the second light hole 40413 of the fixing member 4041 may be located on the reflection light path of the fifth reflector 4044, so that the fifth wavelength optical signal emitted by the second optical transmitting component 401 can be reflected by the fifth reflector and then incident on the first reflection-transmission plate 4043 through the second light hole 40413.

[0499] like Figure 18 As shown, the transmission optical path is as follows: The fourth wavelength optical signal emitted by the first optical transmitting assembly 402 is sequentially transmitted through the first reflective-transmissive plate 4043 and the second reflective-transmissive plate 4042. The fifth wavelength optical signal emitted by the second optical transmitting assembly 401 is first reflected by the fifth reflective plate 4044 and the first reflective-transmissive plate 4043, and then transmitted through the second reflective-transmissive plate 4042. The sixth wavelength optical signal emitted by the third optical transmitting assembly 403 is reflected by the second reflective-transmissive plate 4042. The fourth, fifth, and sixth wavelength optical signals constitute the transmitted optical signal. The transmitted optical signal is sequentially transmitted through the fourth wave plate 51725 and the first wave plate 51722, and then coupled to the optical fiber adapter 700 through the first lens 5171.

[0500] The first optical emitting component is combined with the first optical receiving component to form a first optical module, the second optical emitting component is combined with the first optical receiving component to form a second optical module, and the third optical emitting component is combined with the first optical receiving component to form a third optical module. The optical receiving components of the first, second, and third optical modules are identical, i.e., the optical path of the transmitted optical signal within the optical receiving component and the optical path of the received optical signal are identical. Figure 19a This is a light path diagram of a first optical module provided according to some embodiments. Figure 19b This is a light path diagram of a second optical module provided according to some embodiments. Figure 19c FIG. 1 is a light path diagram of a third optical module according to some embodiments. Figure 19a 、 Figure 19b and Figure 19c As shown, the transmitted optical signal is first transmitted through the wave splitting component 5172 a and then coupled to the optical fiber adapter 700 through the first lens 5171 .

[0501] The received optical signal is first collimated by the first lens 5171 and then split into a first wavelength optical signal, a second wavelength optical signal, and a third wavelength optical signal by the wave splitter 5172a. The first wavelength optical signal is first reflected by the first reflector 5173, filtered by the second filter 5178, and then incident on the second optical receiving assembly 520. The third wavelength optical signal is first reflected by the second reflector 5176, filtered by the first filter 5177, and then incident on the first optical receiving assembly 530. The second wavelength optical signal is first filtered by the third filter 5174, and then reflected by the third reflector 5175 to the third optical receiving assembly 540.

[0502] like Figure 19a 、 Figure 19b and Figure 19c As shown, the second optical receiving assembly 520 and the first optical receiving assembly 530 can be located on the second side wall 512 of the first shell 510, and the third optical receiving assembly 540 can be located on the fourth side wall 514 of the first shell 510. The second optical receiving assembly 520 is closer to the optical fiber adapter 700 than the first optical receiving assembly 530.

[0503] like Figure 12a 、 Figure 14d and Figure 19a As shown, the transmission optical path is as follows: the fourth wavelength optical signal emitted by the first laser assembly 440 is sequentially transmitted through the ninth filter 417 and the eighth filter 416. The fifth wavelength optical signal emitted by the second laser assembly 450 is first reflected by the ninth filter 417 and then transmitted through the eighth filter 416. The sixth wavelength optical signal emitted by the third laser assembly 460 is reflected by the eighth filter 416. The fourth, fifth, and sixth wavelength optical signals constitute the transmission optical signal.

[0504] like Figure 12a 、 Figure 17 and Figure 19b As shown, the side wall of the second housing 410 where the first light emitting assembly 402 is located can be arranged opposite to the first side wall 511 of the first housing 510, so that the light emitting direction of the first light emitting assembly 402 can be toward the fiber optic adapter 700. For example, the first light emitting assembly 402 can be located on the third side wall 414 of the second housing 410, and the third side wall 414 of the second housing 410 can be arranged opposite to the first side wall 511 of the first housing 510.

[0505] The side walls of the second housing 410 where the second optical transmission assembly 401 and the third optical transmission assembly 403 are located are not disposed opposite the first side wall 511 of the first housing 510, so that the light emission directions of the second optical transmission assembly 401 and the third optical transmission assembly 403 are not toward the fiber optic adapter 700. For example, the second optical transmission assembly 401 can be located on the second side wall 413 of the second housing 410, and the third optical transmission assembly 403 can be located on the fourth side wall 415 of the second housing 410. Neither the second side wall 413 of the second housing 410 nor the fourth side wall 415 of the second housing 410 are disposed opposite the first side wall 511 of the first housing 510.

[0506] like Figure 12a 、 Figure 17 and Figure 19b As shown, the transmission optical path is as follows: The fourth wavelength optical signal emitted by the first optical transmitting assembly 402 is sequentially transmitted through the first reflective-transmissive plate 4043 and the second reflective-transmissive plate 4042. The fifth wavelength optical signal emitted by the second optical transmitting assembly 401 is first reflected by the first reflective-transmissive plate 4043 and then transmitted through the second reflective-transmissive plate 4042. The sixth wavelength optical signal emitted by the third optical transmitting assembly 403 is reflected by the second reflective-transmissive plate 4042. The fourth, fifth, and sixth wavelength optical signals constitute the transmitted optical signal. The transmitted optical signal is first transmitted through the wavelength splitter 5172a and then coupled to the fiber optic adapter 700 through the first lens 5171.

[0507] like Figure 12a 、 Figure 18 and Figure 19c As shown, in some embodiments, the side walls of the second housing 410 where the first optical transmission assembly 402 and the second optical transmission assembly 401 are located are both disposed opposite to the first side wall 511 of the first housing 510, so that the light emission directions of the first optical transmission assembly 402 and the second optical transmission assembly 401 can both be directed toward the fiber optic adapter 700. For example, the first optical transmission assembly 402 and the second optical transmission assembly 401 can both be located on the third side wall 414 of the second housing 410, and the third side wall 414 of the second housing 410 can be disposed opposite to the first side wall 511 of the first housing 510.

[0508] The side wall of the second housing 410 where the third light emitting assembly 403 is located is not disposed opposite the first side wall 511 of the first housing 510, so that the light emitting direction of the third light emitting assembly 403 is toward the fiber optic adapter 700. For example, the third light emitting assembly 403 can be located on the fourth side wall 415 of the second housing 410, and the fourth side wall 415 of the second housing 410 is not disposed opposite the first side wall 511 of the first housing 510.

[0509] like Figure 12a 、 Figure 18 and Figure 19c As shown, the transmission optical path is as follows: The fourth wavelength optical signal emitted by the first optical transmitting assembly 402 is sequentially transmitted through the first reflective-transmissive plate 4043 and the second reflective-transmissive plate 4042. The fifth wavelength optical signal emitted by the second optical transmitting assembly 401 is first reflected by the fifth reflective plate 4044 and the first reflective-transmissive plate 4043, and then transmitted through the second reflective-transmissive plate 4042. The sixth wavelength optical signal emitted by the third optical transmitting assembly 403 is reflected by the second reflective-transmissive plate 4042. The fourth, fifth, and sixth wavelength optical signals constitute the transmitted optical signal. After passing through the wavelength splitter 5172a, the transmitted optical signal is coupled to the fiber optic adapter 700 through the first lens 5171.

[0510] The first optical emitting component is combined with the second optical receiving component to form a fourth optical module, the second optical emitting component is combined with the second optical receiving component to form a fifth optical module, and the third optical emitting component is combined with the second optical receiving component to form a sixth optical module. The optical receiving components of the fourth optical module, the fifth optical module and the sixth optical module are the same, that is, the optical path of the transmitted optical signal in the optical receiving component and the receiving optical path are the same. Figure 20a This is a light path diagram of a fourth optical module provided according to some embodiments. Figure 20b This is a light path diagram of a fifth optical module provided according to some embodiments. Figure 20c FIG. 1 is a light path diagram of a sixth optical module provided according to some embodiments. Figure 20a 、 Figure 20b and Figure 20c As shown, the transmitted optical signal is first transmitted through the wave splitting component 5172 b and then coupled to the optical fiber adapter 700 through the first lens 5171 .

[0511] The received optical signal is first collimated by the first lens 5171 and then split into a first wavelength optical signal, a second wavelength optical signal, and a third wavelength optical signal by the wave splitter 5172b. The first wavelength optical signal is first reflected by the first reflector 5173, filtered by the second filter 5178, and then incident on the second optical receiving assembly 520. The third wavelength optical signal is first reflected by the second reflector 5176, filtered by the first filter 5177, and then incident on the first optical receiving assembly 530. The second wavelength optical signal is first filtered by the third filter 5174, and then reflected by the third reflector 5175 to the third optical receiving assembly 540.

[0512] like Figure 20a 、 Figure 20b and Figure 20c As shown, the second optical receiving assembly 520 and the first optical receiving assembly 530 can be located on the second side wall 512 of the first shell 510, and the third optical receiving assembly 540 can be located on the fourth side wall 514 of the first shell 510. The second optical receiving assembly 520 is closer to the optical fiber adapter 700 than the first optical receiving assembly 530.

[0513] The fourth optical module has the same optical emitting component as the first optical module, that is, the optical path for generating the transmitted optical signal by the optical emitting component is the same. The first optical module has been introduced and will not be described again here.

[0514] The fifth optical module has the same optical emitting component as the second optical module, that is, the optical path for generating the transmitted optical signal by the optical emitting component is the same. The second optical module has been introduced and will not be described again here.

[0515] The sixth optical module has the same optical emitting component as the third optical module, that is, the optical path for generating the transmitted optical signal by the optical emitting component is the same. The third optical module has been introduced and will not be described again here.

[0516] The first optical emitting component and the third optical receiving component are combined to form the seventh optical module, the second optical emitting component and the third optical receiving component are combined to form the eighth optical module, and the third optical emitting component and the third optical receiving component are combined to form the ninth optical module. The optical receiving components of the seventh optical module, the eighth optical module and the ninth optical module are the same, that is, the optical path of the transmitted optical signal in the optical receiving component and the receiving optical path are the same. Figure 21a This is a light path diagram of a seventh optical module provided according to some embodiments. Figure 21b This is a light path diagram of an eighth optical module provided according to some embodiments. Figure 21c FIG. 1 is a light path diagram of a ninth optical module according to some embodiments. Figure 21a 、 Figure 21b and Figure 21c As shown, the transmitted optical signal is first transmitted through the wave splitting component 5172 c and then coupled to the optical fiber adapter 700 through the first lens 5171 .

[0517] The received optical signal is first collimated by the first lens 5171 and then split into a first wavelength optical signal, a second wavelength optical signal, and a third wavelength optical signal by the wave splitter 5172c. The first wavelength optical signal is first reflected by the first reflector 5173, filtered by the second filter 5178, and then incident on the second optical receiving assembly 520. The third wavelength optical signal is first reflected by the second reflector 5176, filtered by the first filter 5177, and then incident on the first optical receiving assembly 530. The second wavelength optical signal is first filtered by the third filter 5174, and then reflected by the third reflector 5175 to the third optical receiving assembly 540.

[0518] like Figure 21a 、 Figure 21b and Figure 21c As shown, the second optical receiving component 520 and the first optical receiving component 530 can be located on the second side wall 512 of the first shell 510, the third optical receiving component 540 can be located on the fourth side wall 514 of the first shell 510, the third optical receiving component 540 and the first optical receiving component 530 can be located at the same end of the splitter component 5172c, and the second optical receiving component 520 and the first optical receiving component 530 can be located at different ends of the splitter component 5172c.

[0519] The seventh optical module has the same optical emitting component as the first optical module, that is, the optical path for generating the transmitted optical signal by the optical emitting component is the same. The first optical module has been introduced and will not be described again here.

[0520] The eighth optical module has the same optical emitting component as the second optical module, that is, the optical path for generating the transmitted optical signal by the optical emitting component is the same. The second optical module has been introduced and will not be described again here.

[0521] The ninth optical module has the same optical emitting component as the third optical module, that is, the optical path for generating the transmitted optical signal by the optical emitting component is the same. The third optical module has been introduced and will not be described again here.

[0522] In the above optical module, the first light receiving component 530 , the second light receiving component 520 and the third light receiving component 540 are all arranged vertically relative to the side walls where they are located.

[0523] The first optical emitting component and the fourth optical receiving component are combined to form a tenth optical module, the second optical emitting component and the fourth optical receiving component are combined to form an eleventh optical module, and the third optical emitting component and the fourth optical receiving component are combined to form a twelfth optical module. The optical receiving components of the tenth optical module, the eleventh optical module and the twelfth optical module are the same, that is, the optical path of the transmitted optical signal in the optical receiving component and the receiving optical path are the same. Figure 22a This is a light path diagram of a tenth optical module provided according to some embodiments. Figure 22bThis is a light path diagram of an eleventh optical module provided according to some embodiments. Figure 22c FIG. 1 is a light path diagram of a twelfth optical module provided according to some embodiments. Figure 22a 、 Figure 22b and Figure 22c As shown, the transmitted light signal is sequentially transmitted through the second filter 5186 and the filter assembly 5185 , and then coupled to the optical fiber adapter 700 through the first lens 5171 .

[0524] The receiving optical path is as follows: The received optical signal is collimated by the first lens 5171 and then incident on the filter assembly 5185. The third wavelength optical signal in the received optical signal is first reflected by the filter assembly 5185, then reflected by the first filter 5184 to the first optical receiving assembly 530. The first wavelength optical signal in the received optical signal is first transmitted through the filter assembly 5185, then reflected by the second filter 5186, and finally transmitted through the third filter 5187 to the second optical receiving assembly 520. The second wavelength optical signal in the received optical signal is transmitted through the filter assembly 5185, then reflected by the second filter 5186, and finally reflected by the third filter 5187 to the third optical receiving assembly 540.

[0525] like Figure 22a 、 Figure 22b and Figure 22c As shown, the second light receiving component 520 and the first light receiving component 530 can be located on the second side wall 512 of the first shell 510, the third light receiving component 540 can be located on the fourth side wall 514 of the first shell 510, and the first light receiving component 530 is vertically arranged relative to the second side wall 512 of the first shell 510.

[0526] like Figure 22a 、 Figure 22b and Figure 22c As shown, the third optical receiving component 540 is tilted relative to the fourth side wall 514 of the first shell 510, that is, the third optical receiving component 540 is tilted relative to the side wall where the third optical receiving component 540 is located, so that the second wavelength optical signal can be vertically incident on the third optical receiving component 540, so that the third optical receiving component 540 can receive more second wavelength optical signals.

[0527] In some embodiments, the second light receiving assembly 520 is disposed perpendicularly relative to the second sidewall 512 of the first housing 510 .

[0528] In some embodiments, the second optical receiving component 520 is tilted relative to the second side wall 512 of the first shell 510, that is, the second optical receiving component 520 is tilted relative to the side wall where the second optical receiving component 520 is located, so that the first wavelength optical signal can be vertically incident on the second optical receiving component 520, so that the second optical receiving component 520 can receive more first wavelength optical signals.

[0529] The tenth optical module has the same optical emitting component as the first optical module, that is, the optical path for generating the transmitted optical signal by the optical emitting component is the same. The first optical module has been introduced and will not be described again here.

[0530] The eleventh optical module has the same optical emitting component as the second optical module, that is, the optical path of the optical emitting component to generate the transmitted optical signal is the same. The second optical module has been introduced and will not be repeated here.

[0531] The twelfth optical module has the same optical emitting component as the third optical module, that is, the optical path for generating the transmitted optical signal by the optical emitting component is the same. The third optical module has been introduced and will not be described again here.

[0532] The first optical emitting component and the fifth optical receiving component are combined to form a thirteenth optical module, the second optical emitting component and the fifth optical receiving component are combined to form a fourteenth optical module, and the third optical emitting component and the fifth optical receiving component are combined to form a fifteenth optical module. The optical receiving components of the thirteenth optical module, the fourteenth optical module and the fifteenth optical module are the same, that is, the optical path of the transmitted optical signal in the optical receiving component and the receiving optical path are the same. Figure 23a This is a light path diagram of a thirteenth optical module provided according to some embodiments. Figure 23b This is a light path diagram of a fourteenth optical module provided according to some embodiments. Figure 23c FIG. 15 is a light path diagram of a fifteenth optical module provided according to some embodiments. Figure 23a 、 Figure 23b and Figure 23c As shown, the transmitted light signal is first transmitted through the second filter 5186 , then transmitted through the filter assembly 5185 , and finally coupled to the fiber optic adapter 700 through the first lens 5171 .

[0533] The received optical signal is first collimated by the first lens 5171 and then separated into a third wavelength optical signal and a combined optical signal by the filter assembly 5185. The third wavelength optical signal is reflected by the first filter 5184 to the first optical receiving assembly 530. The combined optical signal is reflected by the second filter 5186 and then transmitted and reflected by the third filter 5187 to separate into the first wavelength optical signal and the second wavelength optical signal. The first wavelength optical signal is incident on the second optical receiving assembly 520, and the second wavelength optical signal is reflected to the third optical receiving assembly 540.

[0534] like Figure 23a 、 Figure 23b and Figure 23cAs shown, the second light receiving component 520 and the first light receiving component 530 can be located on the second side wall 512 of the first shell 510, and the third light receiving component 540 can be located on the fourth side wall 514 of the first shell 510. The first light receiving component 530 is vertically arranged relative to the second side wall 512 of the first shell 510, and the third light receiving component 540 is inclined relative to the fourth side wall 514 of the first shell 510.

[0535] In some embodiments, the second light receiving assembly 520 is disposed perpendicularly relative to the second sidewall 512 of the first housing 510 .

[0536] In some embodiments, the second light receiving assembly 520 is tilted relative to the second sidewall 512 of the first housing 510 to improve coupling efficiency of the second light receiving assembly 520 .

[0537] like Figure 23a 、 Figure 23b and Figure 23c As shown, the central axis of the light outlet of the light emitting component 400 and the central axis of the optical fiber adapter 700 are staggered along the width direction of the first housing 510 .

[0538] The thirteenth optical module has the same optical emitting component as the first optical module, that is, the optical path for generating the transmitted optical signal by the optical emitting component is the same. The first optical module has been introduced and will not be described again here.

[0539] The fourteenth optical module has the same optical emitting component as the second optical module, that is, the optical path of the optical emitting component to generate the transmitted optical signal is the same. The second optical module has been introduced and will not be repeated here.

[0540] The fifteenth optical module has the same optical emitting component as the third optical module, that is, the optical path for generating the transmitted optical signal by the optical emitting component is the same. The third optical module has been introduced and will not be described again here.

[0541] The first optical emitting component and the sixth optical receiving component are combined to form the sixteenth optical module, the second optical emitting component and the sixth optical receiving component are combined to form the seventeenth optical module, and the third optical emitting component and the sixth optical receiving component are combined to form the eighteenth optical module. The optical receiving components of the sixteenth optical module, the seventeenth optical module and the eighteenth optical module are the same, that is, the optical path of the transmitted optical signal in the optical receiving component and the receiving optical path are the same. Figure 24a This is a light path diagram of a sixteenth optical module provided according to some embodiments. Figure 24b This is a light path diagram of a seventeenth optical module provided according to some embodiments. Figure 24c FIG. 1 is a light path diagram of an eighteenth optical module according to some embodiments. Figure 24a 、 Figure 24b and Figure 24cAs shown, the transmitted light signal is sequentially transmitted through the seventh filter 5179 , the sixth filter 5181 and the fourth filter 5182 , and then coupled to the optical fiber adapter 700 through the first lens 5171 .

[0542] The received optical signal is first collimated by the first lens 5171 and then incident on the fourth filter 5182. The first wavelength optical signal in the received optical signal is first reflected by the fourth filter 5182, then reflected by the fifth filter 5183 to the second optical receiving assembly 520. The second wavelength optical signal in the received optical signal is first transmitted by the fourth filter 5182, then transmitted by the sixth filter 5181, and finally reflected by the seventh filter 5179 to the third optical receiving assembly 540. The third wavelength optical signal in the received optical signal is first transmitted by the fourth filter 5182, then reflected by the sixth filter 5181 to the first optical receiving assembly 530.

[0543] like Figure 24a 、 Figure 24b and Figure 24c As shown, the second optical receiving component 520 and the third optical receiving component 540 can be located on the fourth side wall 514 of the first shell 510, the second optical receiving component 520 is closer to the optical fiber adapter 700 relative to the third optical receiving component 540, the second optical receiving component 520 and the third optical receiving component 540 are vertically arranged relative to the fourth side wall 514 of the first shell 510, the first optical receiving component 530 can be located on the second side wall 512 of the first shell 510, and the second optical receiving component 520 is vertically arranged relative to the second side wall 512 of the first shell 510.

[0544] The sixteenth optical module has the same optical emitting component as the first optical module, that is, the optical path for generating the transmitted optical signal by the optical emitting component is the same. The first optical module has been introduced and will not be described again here.

[0545] The seventeenth optical module has the same optical emitting component as the second optical module, that is, the optical path for generating the transmitted optical signal by the optical emitting component is the same. The second optical module has been introduced and will not be described again here.

[0546] The eighteenth optical module has the same optical emitting component as the third optical module, that is, the optical path for generating the transmitted optical signal by the optical emitting component is the same. The third optical module has been introduced and will not be described again here.

[0547] The first optical emitting component is combined with the seventh optical receiving component to form the nineteenth optical module, the second optical emitting component is combined with the seventh optical receiving component to form the twentieth optical module, and the third optical emitting component is combined with the seventh optical receiving component to form the twenty-first optical module. The optical receiving components of the nineteenth optical module, the twentieth optical module and the twenty-first optical module are the same, that is, the optical path of the transmitted optical signal in the optical receiving component and the receiving optical path are the same. Figure 25a This is a light path diagram of a nineteenth optical module provided according to some embodiments. Figure 25b This is a light path diagram of a twentieth optical module provided according to some embodiments. Figure 25c FIG2 is a light path diagram of a twenty-first optical module provided according to some embodiments. Figure 25a 、 Figure 25b and Figure 25c As shown, the transmitted optical signal is first transmitted through the wave splitting component 5172 a and then coupled to the optical fiber adapter 700 through the first lens 5171 .

[0548] The received optical signal is first collimated by the first lens 5171 and then split into a first wavelength optical signal, a second wavelength optical signal, and a third wavelength optical signal by the wave splitter 5172a. The first wavelength optical signal is first reflected by the fourth reflector 5188, then filtered by the second filter 5178, and finally coupled to the first optical receiving chip of the fourth optical receiving assembly 560 through the third lens 563. The second wavelength optical signal is first reflected by the fourth reflector 5188, then filtered by the third filter 5174, and finally coupled to the second optical receiving chip of the fourth optical receiving assembly 560 through the fourth lens 564. The third wavelength optical signal is first reflected by the second reflector 5176, then filtered by the first filter 5177, and then incident on the first optical receiving assembly 530.

[0549] like Figure 25a 、 Figure 25b and Figure 25c As shown, the first light receiving assembly 530 and the fourth light receiving assembly 560 may be located on the second sidewall 512 of the first housing 510 .

[0550] The nineteenth optical module has the same optical emitting component as the first optical module, that is, the optical path for generating the transmitted optical signal by the optical emitting component is the same. The first optical module has been introduced and will not be described again here.

[0551] The twentieth optical module has the same optical emitting component as the second optical module, that is, the optical path for generating the transmitted optical signal by the optical emitting component is the same. The second optical module has been introduced and will not be described again here.

[0552] The twenty-first optical module has the same optical emitting component as the third optical module, that is, the optical path for generating the transmitted optical signal by the optical emitting component is the same. The third optical module has been introduced and will not be described again here.

[0553] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Although the present disclosure has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present disclosure.

Claims

1. An optical module, characterized in that: include: A light receiving component, a first end of which is connected to the optical fiber adapter, and a second end of which is connected to the light emitting component, wherein the light emitting direction of the light emitting component is toward the optical fiber adapter; Wherein, the light receiving component includes: a first light receiving component; a second light receiving assembly, located on one side of the light receiving component together with the first light receiving assembly; a third light receiving assembly, located on the other side of the light receiving component; A wave splitting assembly, with a first end facing the optical fiber adapter and a second end facing the optical emitting component; a transmitted optical signal emitted by the optical emitting component is incident on a transmitted light input at the second end of the wave splitting assembly and emitted through a received light input at the first end of the wave splitting assembly; a received optical signal including a first wavelength, a second wavelength, and a third wavelength transmitted by the optical fiber adapter is incident on the received light input at the first end of the wave splitting assembly, is reflected by the transmitted light input at the second end of the wave splitting assembly, is split into a first wavelength optical signal, a second wavelength optical signal, and a third wavelength optical signal, and then emitted; the first wavelength optical signal, the second wavelength optical signal, and the third wavelength optical signal are respectively incident on corresponding optical receiving components.

2. The optical module according to claim 1, wherein The first end of the wave splitter assembly has a first light output point, the second end of the wave splitter assembly has a second light output point and a third light output point, the second light receiving assembly is located in the light output direction of the second light output point, the first light receiving assembly is located in the light output direction of the first light output point, and the third light receiving assembly is located in the light output direction of the third light output point.

3. The optical module according to claim 2, wherein: The wave splitting assembly includes a first substrate, a first end surface of the first substrate is arranged corresponding to the first end of the light receiving component, a second end surface of the first substrate is arranged corresponding to the second end of the light receiving component, a first wave plate, a second wave plate and a third wave plate are sequentially arranged on the first end surface of the first substrate, a fourth wave plate, a fifth wave plate and a sixth wave plate are sequentially arranged on the second end surface of the first substrate, the first wave plate and the fourth wave plate are arranged opposite to each other, the second wave plate and the fifth wave plate are arranged opposite to each other, and the third wave plate and the sixth wave plate are arranged opposite to each other; The transmitting optical signal emitted by the optical transmitting component is sequentially transmitted through the fourth wave plate and the first wave plate to the optical fiber adapter; the receiving optical signal transmitted by the optical fiber adapter is sequentially transmitted through the first wave plate, reflected by the fourth wave plate and the second wave plate, reflected and transmitted through the fifth wave plate, reflected by the fifth wave plate, reflected and transmitted through the third wave plate, reflected by the third wave plate, and finally transmitted through the sixth wave plate, so that the first wavelength optical signal is emitted through the fifth wave plate, the third wavelength optical signal is emitted through the third wave plate, and the second wavelength optical signal is emitted through the sixth wave plate.

4. The optical module according to claim 2, wherein: The wave splitting assembly includes a first substrate, a first end surface of the first substrate is arranged corresponding to the first end of the light receiving component, a second end surface of the first substrate is arranged corresponding to the second end of the light receiving component, a first wave plate, a second wave plate and a third wave plate are sequentially arranged on the first end surface of the first substrate, a fourth wave plate, a fifth wave plate and a sixth wave plate are sequentially arranged on the second end surface of the first substrate, the first wave plate and the fourth wave plate are arranged opposite to each other, the second wave plate and the fifth wave plate are arranged opposite to each other, and the third wave plate and the sixth wave plate are arranged opposite to each other; The transmitting optical signal emitted by the optical transmitting component is sequentially transmitted through the fourth wave plate and the first wave plate to the optical fiber adapter; the receiving optical signal transmitted by the optical fiber adapter is sequentially transmitted through the first wave plate, reflected through the fourth wave plate, reflected and transmitted through the second wave plate, reflected through the second wave plate, reflected and transmitted through the fifth wave plate, reflected through the fifth wave plate, reflected through the third wave plate, and transmitted through the sixth wave plate, so that the first wavelength optical signal is emitted through the fifth wave plate, the third wavelength optical signal is emitted through the second wave plate, and the second wavelength optical signal is emitted through the sixth wave plate.

5. The optical module according to claim 1, wherein: The wave splitting assembly includes a first substrate, a first end surface of the first substrate is arranged corresponding to the first end of the light receiving component, a second end surface of the first substrate is arranged corresponding to the second end of the light receiving component, a first wave plate, a second wave plate, a third wave plate and a seventh wave plate are sequentially arranged on the first end surface of the first substrate, a fourth wave plate, a fifth wave plate and a sixth wave plate are sequentially arranged on the second end surface of the first substrate, the first wave plate and the fourth wave plate are arranged opposite to each other, the second wave plate and the fifth wave plate are arranged opposite to each other, and the third wave plate and the sixth wave plate are arranged opposite to each other; The transmitting optical signal emitted by the optical transmitting component is sequentially transmitted through the fourth wave plate and the first wave plate to the optical fiber adapter; the receiving optical signal transmitted by the optical fiber adapter is sequentially transmitted through the first wave plate, reflected through the fourth wave plate, reflected and transmitted through the second wave plate, reflected through the second wave plate, reflected through the fifth wave plate and the third wave plate, reflected and transmitted through the sixth wave plate, reflected through the sixth wave plate, and then transmitted through the seventh wave plate, so that the first wavelength optical signal is emitted through the sixth wave plate, the third wavelength optical signal is emitted through the second wave plate, and the second wavelength optical signal is emitted through the seventh wave plate.

6. The optical module according to claim 1, wherein: The light emitting component comprises: a first optical emitting assembly, the light emitting direction of which is toward the optical fiber adapter; a second light emitting assembly; A third light emitting assembly is located on a different side wall of the light emitting component than the first light emitting assembly; the side wall where the third light emitting assembly is located is connected to the side wall where the first light emitting assembly is located; The second light emitting component and the first light emitting component are located on the same side wall of the light emitting component, or the second light emitting component and the first light emitting component are located on different side walls of the light emitting component, and the side wall where the second light emitting component is located is connected to the side wall where the first light emitting component is located.

7. The optical module according to claim 1, wherein: The light receiving component further includes: The first reflector is located in the transmission direction of the first wavelength optical signal emitted by the wave splitting component; the second optical receiving component is located in the reflected light path of the first reflector; The second reflector is located in the transmission direction of the third wavelength optical signal emitted by the wave splitting component; the first optical receiving component is located in the reflected light path of the second reflector; The third reflector is located in the transmission direction of the second wavelength optical signal emitted by the wave splitting component; the third optical receiving component is located on the reflected light path of the third reflector.

8. An optical module, characterized in that: include: A light receiving component, a first end of which is connected to the optical fiber adapter and a second end of which is connected to the light emitting component; The light emitting component emits light in a direction toward the optical fiber adapter; The light receiving component includes: a first light receiving component; The fourth light receiving assembly includes: a first light receiving chip; A second optical receiving chip receives a receiving optical signal of a different wavelength from the first optical receiving chip; a wave splitter assembly, wherein the first end faces the optical fiber adapter and the second end faces the optical emitting component; the transmitting optical signal emitted by the optical emitting component is incident on the transmitting light input of the second end of the wave splitter assembly and is emitted through the receiving light input of the first end of the wave splitter assembly; the receiving optical signal including the first wavelength, the second wavelength and the third wavelength transmitted by the optical fiber adapter is incident on the receiving light input of the first end of the wave splitter assembly, is reflected by the transmitting light input of the second end of the wave splitter assembly, and is then split into the first wavelength optical signal, the second wavelength optical signal and the third wavelength optical signal and then emitted, and the first wavelength optical signal, the second wavelength optical signal and the third wavelength optical signal are respectively incident on the corresponding optical receiving components.

9. The optical module according to claim 8, wherein: The light receiving component further includes: The second reflector is located in the transmission direction of the third wavelength optical signal emitted by the wave splitting component; the first optical receiving component is located in the reflected light path of the second reflector; The fourth reflector is located in the transmission direction of the first wavelength optical signal and the second wavelength optical signal emitted by the wave splitter assembly; the fourth optical receiving assembly can be located on the reflected light path of the fourth reflector.

10. The optical module according to claim 8, wherein: The first light receiving component and the fourth light receiving component are located on the same side of the light receiving component, the first light receiving component is farther away from the light emitting component than the fourth light receiving component, and the first light receiving chip is closer to the light emitting component than the second light receiving chip; or, The first light receiving component and the fourth light receiving component are located on different sides of the light receiving component. The first light receiving component is farther away from the light emitting component than the fourth light receiving component, and the second light receiving chip is closer to the light emitting component than the first light receiving chip.

11. An optical module, characterized in that: include: The light receiving components include: The first housing includes a bottom plate, and a first side wall, a second side wall, a third side wall, and a fourth side wall connected in sequence, wherein the bottom plate is connected to the first side wall, the second side wall, the third side wall, and the fourth side wall in sequence, respectively; the first side wall is connected to the optical fiber adapter, and the third side wall is connected to the light emitting component; a first cover plate, covering the first shell; a first light receiving component; A second light receiving assembly and the first light receiving assembly are both connected to the second side wall; a third light receiving assembly connected to the fourth side wall; The wave splitting assembly is arranged along the length direction of the second side wall so that the wave splitting assembly is arranged along the length direction of the first shell; the transmitted light signal emitted by the optical emitting component is incident on the transmitted light input of the second end of the wave splitting assembly and is emitted through the received light input of the first end of the wave splitting assembly; the received light signal including the first wavelength, the second wavelength and the third wavelength transmitted by the optical fiber adapter is incident on the received light input of the first end of the wave splitting assembly, is reflected by the transmitted light input of the second end of the wave splitting assembly, and is then split into the first wavelength light signal, the second wavelength light signal and the third wavelength light signal and then emitted, and the first wavelength light signal, the second wavelength light signal and the third wavelength light signal are respectively incident on the corresponding optical receiving assembly.

12. The optical module according to claim 11, wherein: The first side wall has a first connecting hole, the third side wall has a second connecting hole, the second side wall has a fourth connecting hole and a fifth connecting hole, the fourth side wall has a third connecting hole, the third connecting hole is connected to the third light receiving assembly, the fourth connecting hole is connected to the second light receiving assembly, and the fifth connecting hole is connected to the first light receiving assembly; The first connecting hole, the second connecting hole, the third connecting hole, the fourth connecting hole and the fifth connecting hole are respectively connected to the accommodating cavity of the first shell. A first lens is provided in the accommodating cavity. The first lens is located between the first connecting hole and the wave splitting component.

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