Optical transceiver device, optical module and optical communication device

Abstract

An optical transceiver device (100), an optical module and an optical communication device. The optical transceiver device (100) comprises a first housing (1), an optical port (2) and an optical receiving component (4) that are arranged on the first housing (1), and a first optical assembly (5) disposed inside the first housing (1). The optical receiving component (4) comprises at least a first filter (401), wherein the first filter (401) is used for receiving a combined optical signal of optical reception signals of multiple different rates, filtering out the optical reception signal of a preset rate from the combined optical signal, and reflecting the optical reception signals of the remaining rates to the exterior of the optical receiving component (4). The first optical assembly (5) is used for transmitting the combined optical signal from the optical port (2) to the interior of the optical receiving component (4), and receiving the optical reception signals of the remaining rates and re-transmitting same to the interior of the optical receiving component (4). The optical transceiver device (100) significantly reduces the cavity volume while being compatible with transceiving multiple optical signals.

Description

Optical transceiver devices, optical modules and optical communication equipment

[0001] This application claims priority to Chinese Patent Application No. 202411629610.8, filed November 14, 2024, entitled "Optical Transceiver Device, Optical Module and Optical Communication Equipment", and to Chinese Patent Application No. 202510991406.9, filed July 17, 2025, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This disclosure relates to the field of optical communication technology, and in particular to optical transceivers, optical modules and optical communication equipment. Background Technology

[0003] Passive Optical Networks (PONs) enable the establishment of physical connections between users and network providers. With the increasing demand for upgraded optical network speeds, PONs have gradually evolved from Gigabit Capable Passive Optical Networks (GPONs) and 10 Gigabit Capable Passive Optical Networks (10G PONs) to 50 Gigabit Capable Passive Optical Networks (50G PONs). This makes it necessary for PON optical modules to be compatible with GPON, 10GPON, and 50GPON optical networks simultaneously.

[0004] The related technology provides a six-way optical transceiver device for three-mode PON optical modules with three generations of coexistence. The optical transceiver device includes a housing and three sets of optical transmitting components and three sets of optical receiving components disposed on the housing. The optical transmitting components and optical receiving components are all packaged with a semiconductor outer line (TO) on a coaxial base. The housing also contains an optical assembly including filters of various angles to realize the multiplexing of optical signals at the three transmitting ends and the wavelength division processing of optical signals at the three receiving ends.

[0005] However, for the six-way optical transceivers involving three generations of coexistence in related technologies, the separation of uplink and downlink optical signals results in a relatively long length of the transceiver. Taking a 1286nm receiving wavelength as an example, in order to ensure the filtering out of 50GPON wavelength, a small-angle filter is required, such as an angle of 8°. Thus, after the incident light signal at the receiving end is reflected by the small-angle filter, in order to increase the distance between it and the original beam, the wavelength of the outgoing light signal is required to undergo diffraction of a certain length, which leads to an increase in the internal volume of the transceiver housing, thereby limiting the miniaturization of the transceiver.

[0006] Public content

[0007] This disclosure provides an optical transceiver device, an optical module, and an optical communication equipment, which can solve the technical problems existing in related technologies. Specifically, the technical solution is as follows.

[0008] On one hand, an optical transceiver device is provided, the optical transceiver device comprising: a first housing, an optical port and an optical receiving component disposed on the first housing, and a first optical component disposed inside the first housing; the first optical component is used to transmit a combined optical signal from the optical port to the optical receiving component, the combined optical signal having multiple different rates;

[0009] The optical receiving component includes at least a first filter, which is used to receive the combined optical signal, filter out an optical receiving signal of a preset rate from the combined optical signal, and reflect the remaining optical receiving signal to the outside of the optical receiving component.

[0010] The first optical component is used to receive the remaining rate optical signal and transmit it again to the optical receiving component.

[0011] The optical transceiver device provided in this embodiment utilizes a first filter in the optical receiving component. This allows the combined optical signal incident on the optical receiving component to be filtered out to obtain a preset rate optical receiving signal. The remaining rate optical receiving signal is then reflected by the first filter to the outside of the optical receiving component and into the interior of the first housing. The remaining rate optical receiving signal inside the first housing is then reflected again by a first optical component to be filtered out sequentially, ultimately achieving the sequential filtering of multiple different rate optical receiving signals. By allowing the receiving optical path to repeatedly enter and exit the optical receiving component, the cavity space of the first housing is effectively utilized, extending the receiving optical path within a limited range. This ensures effective separation between optical receiving signals of different rates and avoids the need for additional optical components for extending the optical path within the optical receiving component. This is particularly advantageous for reducing the size of the optical receiving component and the cavity volume of the first housing. As can be seen, the optical transceiver device provided in this disclosure significantly reduces the cavity volume while being compatible with the transmission and reception of multiple optical signals, which is conducive to the miniaturization and packaging of multi-mode optical transceivers.

[0012] In some examples, the preset rate optical received signal can be the highest rate optical received signal. Therefore, the embodiments of this disclosure use a first filter to preferentially filter out the highest rate optical received signal, which also helps to reduce the insertion loss of the high rate optical received signal, enabling it to be transmitted over a longer distance in the transmission network, thereby ensuring high-quality and long-distance link transmission of the high rate optical received signal.

[0013] In other examples, the preset rate optical receiving signal may also be an optical receiving signal that interferes with or may interfere with other optical receiving signals. Therefore, the embodiments of this disclosure can prioritize filtering out optical receiving signals with a high risk of interference by using the first filter, and can also effectively avoid interference between optical receiving signals of different rates, thereby improving the filtering quality of different optical receiving signals.

[0014] In some possible implementations, the light receiving component is configured as a single unit, which includes a second housing, a second optical component at least partially located inside the second housing, and a plurality of photoelectric converters. The plurality of photoelectric converters are respectively used to receive the various light receiving signals at different rates. The second optical component includes a first filter and a second filter. The first filter is used to filter out the light receiving signal at a preset rate and receive it by one of the photoelectric converters. The number of second filters is one or more. The second filters are used to sequentially filter out light receiving signals at different rates from the remaining light receiving signals and receive them by different photoelectric converters.

[0015] In some examples, the first optical component includes a third filter, a light reflecting element, and a mirror; the optical port, the third filter, the mirror, the first filter, the light reflecting element, and the second filter are arranged sequentially along the receiving optical path; the third filter is used to reflect the combined optical signal to the mirror; the mirror is used to reflect the combined optical signal to the first filter; and the light reflecting element is used to receive the remaining rate optical signal and reflect it to the second filter.

[0016] In some examples, the optical port, the third filter, and the light emitting component are arranged at intervals along the length direction of the first housing; the projections of the reflector and the light reflecting element on the line connecting the optical port and the third filter are all located between the optical port and the third filter and are arranged at intervals, and the light reflecting element and the reflector are arranged at intervals with the light receiving component along the width direction of the first housing, wherein the width direction of the first housing is perpendicular to the length direction of the first housing.

[0017] In some examples, the reflector is located between the third filter and the light-reflecting element along the length of the first housing;

[0018] or,

[0019] Along the length of the first housing, the light-reflecting element is located between the third filter and the reflector.

[0020] In some examples, the optical transceiver also includes a movable support, which supports at least one of the optical reflecting element and the reflector, and the movable support is used to change the emission direction of the emitted light from at least one of the optical reflecting element and the reflector.

[0021] In some examples, the optical receiving component is used to receive optical signals at three different rates. The optical receiving component includes a first photoelectric converter, a second photoelectric converter, a third photoelectric converter, a first filter, a second filter, and a second filter. The first filter is located in the receiving optical path of the first photoelectric converter and is used to filter out the optical signal at the first rate and transmit it to the first photoelectric converter, and reflect the optical signals at the second rate and the third rate to the outside of the optical receiving component. The second filter is located in the receiving optical path of the second photoelectric converter and is used to filter out the optical signal at the second rate and transmit it to the second photoelectric converter, and reflect the optical signal at the third rate to the second filter. The second filter is located in the receiving optical path of the third photoelectric converter and is used to filter out the optical signal at the third rate and transmit it to the third photoelectric converter. The first rate, the second rate, and the third rate decrease sequentially.

[0022] In some other possible implementations, the light receiving components are configured as multiple components, including a first light receiving component and a second light receiving component. The first light receiving component includes a third optical component and one or more photoelectric converters disposed inside the housing. The second light receiving component includes a fourth optical component and one or more photoelectric converters disposed inside the housing. Each photoelectric converter in the first and second light receiving components is used to receive light receiving signals at different rates. At least one of the third and fourth optical components includes a first filter, which is used to filter out light receiving signals at a preset rate and receive them by one of the photoelectric converters. One of the third and fourth optical components reflects the remaining rate light receiving signal to the other of the third and fourth optical components through the first filter. The other of the third and fourth optical components also includes a second filter, which is used to sequentially filter out light receiving signals at different rates from the remaining rate light receiving signal and receive them by different photoelectric converters.

[0023] In some examples, the first optical component includes a third filter, a reflector, and a prism; one of the optical port, the third filter, the reflector, the third optical component, and the fourth optical component, and the other of the prism, the third optical component, and the fourth optical component are arranged sequentially along the receiving optical path; the third filter is used to transmit the multiple light emission signals at different rates and reflect the combined light signal to the reflector; the reflector is used to reflect the combined light signal to the first filter; the prism is used to reflect the remaining rate light reception signal from one of the third optical component and the fourth optical component to the other.

[0024] In some examples, the optical port and the third filter are arranged at intervals along the length direction of the first housing; the projections of the reflector and the prism on the line connecting the optical port and the third filter are both located between the optical port and the third filter and are arranged at intervals, and the first light receiving component, the reflector and the prism, and the second light receiving component are arranged at intervals along the width direction of the first housing, wherein the width direction of the first housing is perpendicular to the length direction of the first housing.

[0025] In some examples, the first optical receiving component is used to receive an optical receiving signal at a preset rate and includes a first photoelectric converter and a first filter; the second optical receiving component is used to receive optical receiving signals at two other different rates and includes a second photoelectric converter, a third photoelectric converter, a second filter, and a second filter; the first filter is located in the receiving optical path of the first photoelectric converter, used to filter out the optical receiving signal at the first rate and transmit it to the first photoelectric converter, and reflect the optical receiving signals at the second rate and the third rate to the outside of the first optical receiving component; the second filter is located in the receiving optical path of the second photoelectric converter, used to filter out the optical receiving signal at the second rate and transmit it to the second photoelectric converter, and reflect the optical receiving signal at the third rate to the second filter; the second filter is located in the receiving optical path of the third photoelectric converter, used to filter out the optical receiving signal at the third rate and transmit it to the third photoelectric converter, wherein the first rate, the second rate, and the third rate gradually decrease.

[0026] In some possible implementations, the light receiving component further includes a plurality of lenses, which are respectively located in the receiving optical path of the plurality of photoelectric converters. The plurality of lenses are used to converge and transmit the received optical signals of corresponding rates filtered out by the first filter and the second filter to the corresponding photoelectric converters.

[0027] In some possible implementations, the optical receiving component further includes a plurality of fourth filters, which are respectively located in the receiving optical path of the plurality of photoelectric converters. The plurality of fourth filters are used to filter out the received optical signals of corresponding rates filtered out by the first filter and the second filter and transmit them to the corresponding lenses.

[0028] In some possible implementations, the optical transceiver further includes an optical emitting component for emitting optical signals at various rates, which are then transmitted by the first optical component to the optical port.

[0029] In some possible implementations, the light receiving component is a coaxial package structure or a box package structure, and the housing of the coaxial package structure or the box package structure has a transparent light window for light entry and exit. Optionally, the transparent light window is a transparent planar light window.

[0030] On the other hand, an optical module is provided, the optical module comprising: a third housing, an optical transceiver device and a circuit board housed within the third housing, wherein the optical transceiver device is as described above, and the optical transceiver device includes an optical emitting component and an optical receiving component, both of which are electrically connected to the circuit board.

[0031] In another aspect, an optical communication device is provided, the optical communication device including a fourth housing and an optical module as described above, the fourth housing having an interface, and the optical module being plugged into the interface. Attached Figure Description

[0032] Figure 1 is a schematic diagram of an exemplary optical transceiver device provided in an embodiment of this disclosure;

[0033] Figure 2 is a schematic diagram of an exemplary receiving optical path of the optical transceiver device shown in Figure 1;

[0034] Figure 3 is an external view of a TO-packaged optical receiving component provided in an embodiment of this disclosure;

[0035] Figure 4 is a partial exploded view of the optical receiving component shown in Figure 3 after the cap has been removed;

[0036] Figure 5 is a schematic diagram of another exemplary optical transceiver device provided in an embodiment of this disclosure;

[0037] Figure 6 is a schematic diagram of the structure of another exemplary optical transceiver device provided in the embodiments of this disclosure;

[0038] Figure 7 is a schematic diagram of the receiving optical path of the optical transceiver device shown in Figure 6;

[0039] Figure 8 is a schematic diagram of the structure of another exemplary optical transceiver device provided in the embodiments of this disclosure;

[0040] Figure 9 is a schematic diagram of the receiving optical path of an optical transceiver device involved in related technologies;

[0041] Figure 10 is a schematic diagram of an exemplary optical module provided in an embodiment of this disclosure;

[0042] Figure 11 is another exemplary receiving optical path diagram of the optical transceiver device shown in Figure 1;

[0043] Figure 12 is another exemplary receiving optical path diagram of the optical transceiver device shown in Figure 1.

[0044] The reference numerals in the attached figures represent: 100, optical transceiver; 200, circuit board; 300, third housing; 1, first housing; 2, optical port; 3, optical emitting component; 4, optical receiving component; 4a, first optical receiving component; 4b, second optical receiving component; 41, second housing; 410, transparent light window; 411, tube socket; 412, tube cap; 413, bracket; 421, second optical component; 422, third optical component; 423, fourth optical component; 401, first filter; 402, second filter; 403, lens; 404, fourth filter; 43, photoelectric converter; 43a, first photoelectric converter; 43b, second photoelectric converter; 43c, third photoelectric converter; 44, transimpedance amplifier; 45, pin; 5, first optical component; 501, third filter; 502, light reflecting element; 503, mirror; 504, prism; 6, movable bracket. Detailed Implementation

[0045] With the gradual evolution and improvement of network speeds, the wavelength range of optical signals narrows as network speeds increase. This necessitates the use of small-angle filtering devices to meet the performance specifications of optical path transmission (for example, for 50G PON optical signals, the wavelength range is narrow, requiring small-angle filters (e.g., 8° filters) for beam splitting). Furthermore, small-angle filters need to diffract over a longer distance to achieve spatial separation between split signals. In this context, the three-generation coexistence six-directional optical transceivers disclosed in related technologies typically have a large internal cavity volume, particularly in terms of length, which limits the miniaturization of optical transceivers.

[0046] To address the technical problems existing in related technologies, this disclosure provides a novel optical transceiver device. This device is not only compatible with GPON, 10GPON, and 50GPON optical networks simultaneously, but also has the advantage of small size, thereby solving the technical problems existing in related technologies. Based on this, this disclosure also provides an optical module and optical communication equipment based on this novel optical transceiver device.

[0047] The following provides an exemplary description of the structural arrangement and effects of the optical transceivers, optical modules, and optical communication equipment involved in the embodiments of this disclosure.

[0048] Figure 1 shows a schematic diagram of an optical transceiver device. As shown in Figure 1, the optical transceiver device includes: a first housing 1, an optical port 2, an optical receiving component 4, and a first optical assembly 5. The optical port 2 and the optical receiving component 4 are both disposed within the first housing 1, and the first optical assembly 5 is disposed inside the first housing 1. The first optical assembly 5 is used to transmit a combined optical signal from the optical port 2 to the optical receiving component 4. The combined optical signal has multiple different rates.

[0049] The optical receiving component 4 is used to receive optical signals of various different rates, thus adapting to the reception requirements of optical communication networks with different communication protocols. Specifically, the optical receiving component 4 includes at least a first filter 401, which receives the combined optical signal, filters out the optical signal of a preset rate from the combined optical signal, and reflects the remaining rate optical signal to the outside of the optical receiving component 4. The first optical component 5 is also used to receive the remaining rate optical signal and transmit it again to the interior of the optical receiving component 4.

[0050] The optical transceiver device provided in this embodiment utilizes a first filter 401 within the optical receiving component 4. This allows the combined optical signal incident on the optical receiving component 4 to be filtered out at a preset rate by the first filter 401, while the remaining rate optical signal undergoes optical path reversal through the first filter 401, transmitting to the outside of the optical receiving component 4 and entering the interior of the first housing 1. The remaining rate optical signal entering the first housing 1 undergoes another optical path reversal through the first optical component 5, refracting back into the optical receiving component 4 for sequential filtering, ultimately achieving sequential filtering of multiple different rate optical signals. By allowing the receiving optical path to repeatedly enter and exit the optical receiving component 4, the cavity space of the first housing 1 is effectively utilized, allowing the receiving optical path to be elongated within a limited range. This ensures effective separation between optical signals of different rates and avoids the need for additional optical components in the optical receiving component 4 for optical path elongation. This is particularly advantageous for reducing the volume of the optical receiving component 4 and the cavity volume of the first housing 1. As can be seen, the optical transceiver device provided in this disclosure significantly reduces the cavity volume while being compatible with the transmission and reception of multiple optical signals, which is conducive to the miniaturization and packaging of multi-mode optical transceivers.

[0051] In some examples, the preset rate optical receiving signal can be the highest rate optical receiving signal. Therefore, in this embodiment of the present disclosure, the highest rate optical receiving signal is preferentially filtered out by the first filter 401, which helps to reduce the insertion loss of the high rate optical receiving signal and enable it to be transmitted over a longer distance in the transmission network, thereby ensuring high-quality and long-distance link transmission of the high rate optical receiving signal.

[0052] In some examples, the optical receiving signal at the preset rate may also be an optical receiving signal that interferes with or may interfere with other optical receiving signals. Therefore, the embodiments of this disclosure can prioritize filtering out optical receiving signals with a high risk of interference through the first filter 401, and can also effectively avoid interference between optical receiving signals at different rates, thereby improving the filtering quality of different optical receiving signals.

[0053] In the optical transceiver device provided in this embodiment, the optical receiving component 4 can be a semiconductor outline (TO) package structure based on a coaxial base, or a box package structure with a square housing. Both TO and BOX packages can meet the hermeticity requirements of the access network (PON). Regardless of whether the optical receiving component 4 adopts a TO package or a BOX package, the housing of the optical receiving component 4 is provided with a transparent light window 410 for both light entry and exit, allowing light to enter and exit simultaneously. This allows the received optical path to fold back and forth within the optical receiving component 4, thereby supporting the improved optical receiving component 4 described above. It can be seen that the transparent light window 410 acts as an optical path channel and will not cause any adverse interference to the optical received signal (e.g., causing undesirable losses, optical path deflection, etc.).

[0054] In some examples, the transparent light window 410 disposed on the housing of the light receiving component 4 can be a planar window to simplify the optical path arrangement and the number of optical components. Taking the light receiving component 4 in TO package form as an example, the transparent light window 410 of the TO packaged light receiving component 4 can be a TO planar window.

[0055] Furthermore, the optical transceiver may also include an optical emitting component 3. For example, the optical port 2, the optical emitting component 3 and the optical receiving component 4 are respectively disposed on the side wall of the first housing 1. Figure 1 illustrates that the three are respectively disposed on different side walls of the first housing 1, and the optical port 2 and the optical emitting component 3 are arranged opposite to each other.

[0056] The optical transmitting component 3 is used to transmit optical signals at various rates, thus adapting to the transmission requirements of optical communication networks with different communication protocols. In this embodiment, the optical transmitting component 3 can be in a multi-transmitter configuration, a single-transmitter configuration, or a combination of both, depending on actual needs. For example, when it is necessary to transmit and receive optical signals with multiple different communication protocols, the optical transmitting component 3 can be configured with a multi-transmitter package structure as shown in Figure 1. In this case, the number of optical transmitting components 3 is set to one, which is more advantageous for the miniaturization of optical transceiver devices.

[0057] The first optical component 5 is disposed inside the first housing 1. The first optical component 5 can process light emission signals and light reception signals simultaneously. The first optical component 5 is used to transmit light emission signals of various different rates and to reflect the combined light signal from the light port 2 to the light receiving component 4.

[0058] In this embodiment, based on the following improved arrangement of the optical receiver 4, the optical receiver 4 can be adopted in a multi-receiver configuration (see Figure 1), or a combination of a multi-receiver configuration and a single-receiver configuration (see Figure 6). While ensuring that different receiving optical paths do not interfere with each other, the size of the optical receiver 4 itself and the size of the optical transceiver device in which it is located can be significantly reduced. The following examples of different optical transceiver devices further illustrate the operation mode and effects of the optical receiver 4 and the first optical component 5.

[0059] In some examples (1), as shown in Figures 1 and 2, a multi-in-one packaged optical receiver 4 is disclosed, that is, the optical receiver 4 is configured as one in the optical transceiver device. The optical receiver 4 includes a second housing 41, a second optical component 421 located at least partially inside the second housing 41, and a plurality of photoelectric converters 43, which are used to receive optical signals of various different rates.

[0060] In this embodiment of the present disclosure, each of the plurality of photoelectric converters 43 is used to receive a light receiving signal at a different rate. Each photoelectric converter 43 is adaptively designed according to the rate of the light receiving signal. Therefore, although the plurality of photoelectric converters 43 are all used for photoelectric conversion, they are different from each other because they handle different rate types. All of the plurality of photoelectric converters 43 are located inside the second housing 41.

[0061] Taking the optical receiver 4 as an example of a three-in-one package, Figure 2 illustrates that the optical receiver 4 includes three different photoelectric converters 43, namely the first photoelectric converter 43a, the second photoelectric converter 43b, and the third photoelectric converter 43c, which are used to receive optical signals of three different communication protocols.

[0062] For further examples, the first optoelectronic converter 43a is used to receive optical signals from a first communication protocol, such as optical signals from a 50G PON protocol. The second optoelectronic converter 43b is used to receive optical signals from a second communication protocol, such as optical signals from a 10G PON protocol. The third optoelectronic converter 43c is used to receive optical signals from a third communication protocol, such as optical signals from a GPON protocol. Different protocols or different rates of optical signals correspond to different wavelength ranges. For example, the first communication protocol defines an optical signal with a receiving rate of 50Gbps and a wavelength of 1284nm-1288nm, and converts the received 50Gbps electrical signal into an optical signal with a wavelength of 1340nm-1344nm for transmission. The second communication protocol defines an optical signal with a receiving rate of 10Gbps and a wavelength of 1260nm-1280nm, and converts the received 10Gbps electrical signal into an optical signal with a wavelength of 1575nm-1580nm for transmission. The third communication protocol defines an optical signal with a reception rate of 1.25Gbps and a wavelength of 1290nm-1330nm, and converts the received electrical signal with a rate of 2.5Gbps into an optical signal with a wavelength of 1480nm-1490nm for transmission.

[0063] Of course, it is not excluded that the light receiving component 4 may also be configured to include two, four or more photoelectric converters 43.

[0064] Further referring to Figure 2, the second optical component 421 includes a first filter 401 and a second filter 402. The first filter 401 is used to filter out the light receiving signal at a preset rate and receive it by one of the photoelectric converters 43. The number of second filters 402 is one or more. The second filters 402 are used to sequentially filter out light receiving signals at different rates from the remaining light receiving signals and receive them by different photoelectric converters 43.

[0065] The number of second filters 402 is related to the number of optical signals to be received by the optical receiving component 4. In some examples, the first filter 401 is used to filter out one of the optical signals of different rates, and the remaining one or more optical signals of different rates are filtered out by the corresponding second filters 402. Furthermore, when there are multiple second filters 402, the multiple second filters 402 are also different based on the different rates of the optical signals to be filtered out.

[0066] In some examples, see Figures 2 and 11, the first filter 401 and one or more second filters 402 included in the second optical component 421 are located inside the second housing 41, which helps to ensure the encapsulation effect of the light receiving component 4.

[0067] In some examples, referring to Figure 12, the first filter 401 included in the second optical component 421 can be located inside the second housing 41, and the second filter 402 can be located outside the second housing 41. For example, when there are multiple second filters 402, according to the filtering order of the light received signal, the second filters 402 with the light received signal filtering order can be located inside the second housing 41, and the second filters 402 with the light received signal filtering order can be located outside the second housing 41 (i.e., inside the cavity of the first housing 1). Figure 12 illustrates that the second filter 402 with the light received signal filtering order filtering order filtering is located inside the second housing 41, and the other with the light received signal filtering order filtering order filtering is located outside the second housing 41. This scheme is beneficial for improving the manufacturing tolerance and processing efficiency of the optical transceiver device.

[0068] Furthermore, for the second filter 402 located outside the second housing 41, the second filter 402 can be assembled onto a position-adjustable structural component, so that the position of the second filter 402 is adjustable, thereby reducing the superposition effect of multiple tolerances during the assembly and adjustment process and improving the coupling efficiency.

[0069] To illustrate the operation of the second optical component 421, we take the example of the optical receiving component 4 being able to receive three different rates of optical receiving signals. Figures 2, 11 and 12 illustrate the receiving optical path of this example (1). Referring to Figure 2, the combined optical signal (containing three different rates of optical signals) from the optical port is incident into the optical receiving component 4 after the optical path is turned by the first optical component 5. Specifically, the combined optical signal is first received by the first filter 401. The first filter 401 filters out the optical receiving signal of the first communication protocol and reflects the remaining two communication protocol optical receiving signals to the outside of the cavity of the optical receiving component 4. The filtered first communication protocol optical receiving signal is finally received by the first photoelectric converter 43a. The remaining two communication protocol optical receiving signals reflected back into the cavity of the first housing 1 are reflected by the first optical component 5 and then transmitted back into the cavity of the optical receiving component 4 and received by the second filter 402b. The second filter 402b filters out the optical signal of the second communication protocol from the optical signal received by the remaining two communication protocols, and at the same time reflects the optical signal received by the third communication protocol to the second filter 402c. The optical signal received by the second communication protocol is finally received by the second photoelectric converter 43b, and the second filter 402c filters out the optical signal received by the third communication protocol and is received by the third photoelectric converter 43c.

[0070] For example, the optical signal received by the first communication protocol is a 50G PON protocol optical signal, the optical signal received by the second communication protocol is a 10GPON protocol optical signal, and the optical signal received by the third communication protocol is a GPON protocol optical signal. Further, the first filter 401 can be an 8° filter, and both the second filter 402b and the second filter 402c can be 20° filters. The angle of the filter mentioned here refers to the angle between the vertical normal on the incident surface of the filter and the incident light ray. Of course, the specific angle examples above are merely illustrative and do not constitute a limitation on the embodiments of this disclosure.

[0071] The following will explain how the solution in example (1) solves the problem of large device size in the relevant technologies, in conjunction with the optical transceivers involved in the relevant technologies.

[0072] For the six-way optical transceiver device with three generations of coexistence provided by related technologies (taking the 50G PON coexistence scheme as an example), it includes an optical receiving component 1 for receiving 50GPON optical signals, an optical receiving component 2 for receiving 10G PON optical signals, and an optical receiving component 3 for receiving GPON optical signals. The above three optical receiving components are disposed on different side walls of the optical transceiver device, and multiple filters are disposed inside the housing of the optical transceiver device for the above three optical receiving components respectively. The multiple filters are arranged at intervals along the length direction of the optical transceiver device. Because the optical signal of 50GPON has a narrow wavelength range, it requires a small-angle filter (e.g., an 8° filter d1) to split it. This results in a short distance between the initial optical signal incident on the 8° filter and the subsequent optical signal reflected by the 8° filter. Therefore, in order to increase the distance between the initial and subsequent optical signals, the outgoing subsequent optical signal needs to undergo diffraction of a certain length. That is, at least one other filter or reflector d2 needs to be separated from the 8° filter d1 by a long distance along the length of the optical transceiver. This leads to a significant increase in the cavity volume of the optical transceiver, especially its length, which severely limits the miniaturization of the optical transceiver.

[0073] It should be noted that the length direction of the optical transceiver involved in the embodiments of this disclosure can be considered as the distribution direction between the optical port of the optical transceiver and one of the optical emitting components arranged coaxially with the optical port, and the width direction of the optical transceiver is perpendicular to its length direction. Taking the optical transceiver involved in the embodiments of this disclosure as an example, Figure 1 shows the length and width directions of the optical transceiver.

[0074] Even assuming that the related technology integrates three different optical receiving components into one, forming a three-in-one optical receiving component, Figure 9 illustrates the receiving optical path of this three-in-one optical receiving component. As shown in Figure 9, the 50G PON optical signal, due to its narrow wavelength range, requires the use of small-angle filters for beam splitting. For example, Figure 9 illustrates the use of an 8° filter d1 for beam splitting and another 8° filter d2 for optical path reflection of the 50G PON optical signal. To satisfy the separation between different received beams and considering the positional limitations of each component in the optical receiving component, the distance between the 8° filter d2 and the 8° filter d1 must be set to be relatively long. This results in a significant increase in the cavity size of the optical receiving component, particularly the height between the incident light window and the photoelectric converter. This also significantly increases the cavity size of the optical transceiver device containing the optical receiving component, severely limiting the miniaturization requirements of the optical transceiver device.

[0075] Compared with related technologies, the optical transceiver and optical receiver 4 provided in Example (1) have at least the following improvements: the incident light window of the optical receiver 4 is set as a transparent light window 410 to allow light to enter and exit without loss. On this basis, a first filter 401 is provided inside the optical receiver 4, and a first optical component 5 that works in conjunction with the first filter 401 is provided inside the first housing 1 of the optical transceiver. As shown in Figure 2, in the receiving optical path, after the 50G PON received optical signal is filtered out by the first filter 401 at a small angle, the remaining two other received optical signals are reflected by the first filter 401 and emitted from the transparent light window 410 of the optical receiver 4, thus returning to the first housing 1 of the optical transceiver. Thus, the receiving optical path is lengthened and dispersed inside the first housing 1, thereby achieving the separation between different received beams and achieving the purpose of preventing crosstalk. Since the first housing 1 itself has a certain cavity space, Figure 2 illustrates that the first optical component 5 is arranged in part of the cavity space in the width direction of the first housing 1 to transmit the remaining two types of received optical signals to the optical receiving component 4 again. In this way, by making reasonable use of the cavity space of the first housing 1 to arrange the first optical component 5, the first optical component 5 occupies the unused cavity space of the first housing 1 without causing an additional increase in the volume of the first housing 1, significantly improving the space utilization rate of the first housing 1.

[0076] As can be seen, in the scheme described in Example (1), the optical receiving component 4 is configured as a multi-integrated unit and a second optical component 421 is disposed inside it. At the same time, the space along the width direction of the first housing 1 is reasonably utilized to set the first optical component 5 to work in conjunction with the second optical component 421. On the one hand, the space occupied in the length direction of the first housing 1 is reduced, and the length dimension of the first housing 1 is significantly reduced. At the same time, the cavity dimension of the optical receiving component 4, especially the height dimension between the transparent light window 410 of the optical receiving component 4 and the photoelectric converter 43, is significantly reduced, further avoiding the occupation of the cavity space of the optical transceiver device. Compared with the three-integrated optical receiving component involved in the related technology, the scheme described in Example (1) is also particularly advantageous in reducing the width dimension of the first housing 1 in the optical transceiver device.

[0077] It should be noted that, based on the first filter 401 and the second filter 402, the second optical component 421 can be further configured to include other optical elements, such as converging lenses, isolators, and other filters for improving signal isolation, which can be adaptively selected according to actual needs.

[0078] Based on the second optical component 421 involved in the above example (1), the structural arrangement of the first optical component 5 that works in cooperation with the second optical component 421 can refer to the following example, which can continue to refer to FIG2. As shown in FIG2, the first optical component 5 includes a third filter 501, a light reflecting element 502, and a reflector 503. Among them, the optical port 2, the third filter 501, the reflector 503, the first filter 401, the light reflecting element 502, and the second filter 402 are arranged sequentially along the receiving optical path; the third filter 501 is used to reflect the combined light signal to the reflector 503; the reflector 503 is used to reflect the combined light signal to the first filter 401; the light reflecting element 502 is used to receive the remaining rate light receiving signal and reflect it to the second filter 402.

[0079] Continuing with the example of optical receiving component 4 receiving three different rates of optical signals, the cooperative operation between the second optical component 421 and the first optical component 5 is illustrated. Referring to Figure 2, the combined optical signal from the optical port is reflected by the third filter 501 to the reflector 503, and then reflected by the reflector 503 into the interior of the optical receiving component 4. The combined optical signal is first received by the first filter 401, which filters out the optical signal of the first communication protocol and reflects the remaining two communication protocol optical signals to the outside of the cavity of the optical receiving component 4. The remaining two communication protocol optical signals reflected back into the inner cavity of the first housing 1 are reflected by the optical reflector 502 and re-enter the cavity of the optical receiving component 4, where they are received by the second filter 402b. The second filter 402b filters out the second communication protocol optical signal from the remaining two communication protocol optical signals and simultaneously reflects the third communication protocol optical signal to the second filter 402c, which filters out the third communication protocol optical signal.

[0080] In this process, a light reflecting element 502 is provided inside the first housing 1 to receive the remaining rate light receiving signal emitted by the light receiving component 4 and reflect it to the second filter 402. Based on ensuring lossless emission of the remaining rate light receiving signal, any optical element with a reflective function can serve as the light reflecting element 502. For example, the light reflecting element 502 can be a mirror or a filter at a specific angle.

[0081] Based on the working principle of the first optical component 5, it can be seen that by setting the first filter 401 inside the light receiving component 4 and setting the light reflecting element 502 outside the light receiving component 4, the space in the width direction of the first housing 1 is reasonably utilized, so that the distance between the light reflecting element 502 and the first filter 401 is large. Thus, the light signal emitted from the first filter 401 can be separated after the light path is turned by the light reflecting element 502. On the basis of realizing the separation between the light signals, the purpose of reducing the size (especially the length) and cost of the optical transceiver device is achieved.

[0082] Additionally, it should be noted that the third filter 501 is disposed on the common optical path of the transmitting optical path and the receiving optical path, thereby enabling the third filter 501 to transmit the optical emission signal (e.g., the combined signal of multiple optical emission signals) from the optical emission component 3, thus allowing the combined optical emission signal to be input to the optical port 2.

[0083] In this embodiment, corresponding supports can be provided inside the first housing 1 for the third filter 501, the light reflecting element 502, and the reflector 503 to stably support them in suitable positions. In some examples, these supports can be made of transparent optical material to avoid interference with the signal. These supports can be fixed supports with fixed positions or movable supports with variable positions. When using movable supports, many beneficial effects will be brought about, which will be discussed in the following related solutions.

[0084] In conjunction with the above-mentioned example (1), the arrangement of each component in the first housing 1 can be seen in Figures 2, 11 and 12. The following will be described by way of example with reference to the accompanying drawings.

[0085] As shown in Figures 2, 11, and 12, the optical port 2, the third filter 501, and the light emitting component 3 are arranged at intervals along the length direction of the first housing 1; the projections of the reflector 503 and the light reflecting element 502 on the line connecting the optical port 2 and the third filter 501 are all located between the optical port 2 and the third filter 501 and are arranged at intervals, and the light reflecting element 502 and the reflector 503 and the light receiving component 4 are arranged at intervals along the width direction of the first housing 1, wherein the length direction and the width direction of the first housing 1 are perpendicular to each other.

[0086] When the light emitting component 3 is a multi-emitter integrated type, the light port 2 and the light emitting component 3 can be disposed on two opposite side walls of the first housing 1 along its length direction. Furthermore, the central axis of the light port 2 coincides with that of the light emitting component 3. When the light emitting component 3 includes both a single-emitter type and a multi-emitter integrated (e.g., dual-emitter integrated) type light emitting component 3, one of these two light emitting components 3 and the light port 2 can be disposed on two opposite side walls of the first housing 1 along its length direction.

[0087] In some examples, the light emitting component 3 can be configured as a multi-transmitter package, and the light receiving component 4 can be configured as a multi-receiver package.

[0088] The third filter 501 is disposed on the optical path between the optical port 2 and the optical emitting component 3 to facilitate simultaneous processing of the transmitted optical signal and the received optical signal.

[0089] Figure 2 also shows that the reflector 503 and the light reflecting element 502 are located in the area between the optical port 2 and the third filter 501, and the reflector 503 is closer to the third filter 501 than the light reflecting element 502. However, the reflector 503 and the light reflecting element 502 are arranged away from the transmitting optical path to avoid optical path crosstalk. Thus, the projections of the reflector 503 and the light reflecting element 502 on the line connecting the optical port 2 and the third filter 501 are both located between the optical port 2 and the third filter 501. Furthermore, the projections of the reflector 503 and the light reflecting element 502 on the aforementioned line are arranged at intervals along the length direction of the first housing 1 to ensure separation between different receiving optical paths.

[0090] Specifically, the light reflecting element 502 and the reflector 503 are arranged at intervals with the light receiving component 4 along the width direction of the first housing 1, as shown in Figures 1 and 2. This illustrates that the multi-unit light receiving component 4 is disposed on one of the side walls of the first housing 1 distributed along the width direction. Along the width direction of the first housing 1, the light receiving component 4 is located on one side of the light emission path, and the light reflecting element 502 and the reflector 503 are located on the other side of the light emission path, thereby making full and efficient use of the cavity space in the width direction of the first housing 1.

[0091] Based on the above-disclosed scheme, the specific arrangement of the light reflecting element 502 and the reflector 503 inside the first housing 1 can be adapted according to the type of received light signal they process, or the arrangement of the above components can be designed and improved according to the size of the first housing 1.

[0092] As one implementation, Figure 2 illustrates that, along the length of the first housing 1, the reflector 503 is located between the third filter 501 and the light reflecting element 502.

[0093] To give a further example, in Figure 2, which illustrates three types of optical received signals: 50G PON protocol optical signal, 10G PON protocol optical signal, and GPON protocol optical signal, the first filter 401 can be an 8° filter, and the second filter 402b and the second filter 402c can both be 20° filters. Furthermore, the optical reflector 502 can be set to be farther away from the optical port 2 and the connection between the reflector 503 and the third filter 501 than the reflector 503.

[0094] As another implementation, Figures 11 and 12 illustrate that, along the length of the first housing 1, the light reflecting element 502 is located between the third filter 501 and the reflector 503.

[0095] The working principle of the schemes shown in Figures 11 and 12 is basically the same as that of the scheme shown in Figure 2, as previously mentioned, and will not be repeated here. Specifically, in this embodiment, the optical reflector 502 is positioned between the third filter 501 and the reflector 503; that is, from the optical port 2 to the distribution direction of the third filter 501, the reflector 503 and the optical reflector 502 are spaced apart sequentially. This arrangement significantly reduces the length of the optical transceiver device for the following reasons:

[0096] Typically, the second filter 402b is located in the middle region of the optical transceiver, while the third filter 501 is usually positioned near the transmitting end of the optical transceiver (i.e., near the light emitting component 3). In other words, the transmitting end space to the right of the third filter 501, as shown in Figures 11 and 12, is the arrangement space for the light emitting component 3 of the optical transceiver. This optical component layout allows the arrangement space of the second filter 402b to overlap with the transmitting end space of the optical transceiver, making reasonable use of the transmitting end space to achieve a compact arrangement while effectively shortening the distance between the second filter 402b and the third filter 501, thereby significantly reducing the length of the optical transceiver.

[0097] Figure 11 illustrates that the second filter 402b is located inside the second housing 41 of the optical receiving component 4. Based on the scheme shown in Figure 11, the optical transceiver has more redundant space in its length direction. Furthermore, to improve manufacturing tolerance and processing efficiency, the second filter 402b can also be located outside the second housing 41 of the optical receiving component 4 (i.e., inside the cavity of the first housing 1, see Figure 12). In this case, the optical signal reflected by the second filter 402b is emitted again into the cavity of the first housing 1 of the optical transceiver, and then reflected again into the second housing 41 by the second filter 402c. It should be noted that, even if the second filter 402b is located outside the second housing 41 in this scheme, the second filter 402b is still within the transmitting end space of the optical transceiver.

[0098] Since the second filter 402 is located outside the second housing 41, it can be assembled onto a position-adjustable structural component, thereby reducing the cumulative effect of multiple tolerances during the assembly and adjustment process and improving coupling efficiency.

[0099] Regarding the above-mentioned example (1) scheme, in some examples, as shown in Figure 5, the optical transceiver further includes a movable support 6, which supports at least one of the optical reflective element 502 and the reflector 503. The movable support 6 is used to change the emission direction of the emitted light from at least one of the optical reflective element 502 and the reflector 503. For example, the optical reflective element 502 and the reflector 503 can both be supported by different movable supports 6.

[0100] By supporting the reflector 503 with the movable bracket 6, and by changing the position of the movable bracket 6, the emission direction of the light emitted from the reflector 503 can be changed, thereby adjusting the incident angle of the light received signal that first enters the light receiving component 4. Similarly, by supporting the light reflecting element 502 with the movable bracket 6, and by changing the position of the movable bracket 6, the emission direction of the light emitted from the light reflecting element 502 can be changed, thereby adjusting the incident angle of the light received signal that second enters the light receiving component 4. This ensures that all light signals entering the light receiving component 4 can enter at the desired angle, guaranteeing wavelength division accuracy. At the same time, this also reduces the requirements for the assembly accuracy of the components inside the light receiving component 4.

[0101] In some examples, the movable bracket 6 is configured to be rotatable about its own axis. For example, the movable bracket 6 includes a pivot portion and a support portion. The support portion of the movable bracket 6 is fixedly connected (e.g., bonded) to the light reflecting element 502 or the reflector 503. The pivot portion of the movable bracket 6 passes through the side wall of the first housing 1 and is rotatably connected to the side wall of the first housing 1.

[0102] The rotation of the movable bracket 6 can be performed manually. For example, a screwing structure, such as a wrench groove, can be provided on the end of the rotating shaft of the movable bracket 6 located outside the first housing 1 to facilitate the user's rotation operation.

[0103] The rotation of the movable support 6 can also be performed automatically. For example, the end of the rotating shaft of the movable support 6 located outside the first housing 1 can be connected to an electric drive mechanism, such as a drive motor. The drive motor can drive the movable support 6 to rotate at a suitable angle under the command of the controller.

[0104] In conjunction with any of the above-mentioned example (1) schemes, this disclosure provides an example of a three-mode optical transceiver device. The optical receiving component 4 in the three-mode optical transceiver device is used to receive three different rates of optical receiving signals. As shown in Figure 2, the optical receiving component 4 includes a first photoelectric converter 43a, a second photoelectric converter 43b, a third photoelectric converter 43c, a first filter 401, a second filter 402b, and a second filter 402c.

[0105] The first photoelectric converter 43a, the second photoelectric converter 43b, and the third photoelectric converter 43c are arranged at intervals within the second housing 41 of the light receiving component 4. A first filter 401 is located in the receiving optical path of the first photoelectric converter 43a, used to filter out the first-rate light-receiving signal and transmit it to the first photoelectric converter 43a, and reflect the second-rate and third-rate light-receiving signals to the outside of the light receiving component 4. A second filter 402b is located in the receiving optical path of the second photoelectric converter 43b, used to filter out the second-rate light-receiving signal and transmit it to the second photoelectric converter 43b, and reflect the third-rate light-receiving signal to the second filter 402c. A second filter 402c is located in the receiving optical path of the third photoelectric converter 43c, used to filter out the third-rate light-receiving signal and transmit it to the third photoelectric converter 43c. The first, second, and third rates decrease sequentially.

[0106] As shown in Figure 2, the first optical component 5 includes a third filter 501, a light reflecting element 502, and a reflector 503. The third filter 501 is used to transmit light emission signals of various different rates and reflect the combined light signal to the reflector 503. The reflector 503 is used to reflect the combined light signal to the first filter 401. The light reflecting element 502 is used to receive the remaining rate light reception signal and reflect it to the second filter 402.

[0107] For example, the first photoelectric converter 43a is used to receive optical signals of the 50G PON protocol. The second photoelectric converter 43b is used to receive optical signals of the 10GPON protocol. The third photoelectric converter 43c is used to receive optical signals of the GPON protocol.

[0108] The first filter 401 is located in the receiving optical path of the first photoelectric converter 43a. The first filter 401 is configured to separate the optical receiving combined optical signal from the optical port 2, wherein the optical receiving combined optical signal refers to a 50Gbps optical signal + a 10Gbps optical signal + a 1.25Gbps optical signal. Furthermore, the 50Gbps optical signal is transmitted to the first photoelectric converter 43a, and the 10Gbps optical signal + the 1.25Gbps optical signal are reflected to the optical reflector 502.

[0109] The second filter 402b is located in the receiving optical path of the second photoelectric converter 43b. The second filter 402b is configured to transmit an optical signal with a rate of 10Gbps to the second photoelectric converter 43b and to reflect an optical signal with a rate of 1.25Gbps to the second filter 402c.

[0110] The second filter 402c is located in the receiving optical path of the third photoelectric converter 43c. The second filter 402c is configured to transmit an optical signal with a rate of 1.25Gbps to the third photoelectric converter 43c.

[0111] As can be seen, filtering out optical signals in descending order of their reception rate allows for the priority filtering out of higher-rate optical signals, which helps reduce insertion loss of high-rate optical signals and ensures longer-distance link transmission.

[0112] In conjunction with any of the above-mentioned example (1) schemes, in some examples, the light receiving component 4 further includes a plurality of lenses 403, which are respectively located on the receiving optical paths of a plurality of photoelectric converters 43. The plurality of lenses 403 are used to converge and transmit the received optical signals of the corresponding rates filtered out by the first filter 401 and the second filter 402 to the corresponding photoelectric converters 43, thereby ensuring that the received optical signals are fully transmitted to the photoelectric converters 43.

[0113] The internal structure of the lens 403 is different for different rates of light received signals. For example, Figure 2 illustrates that for three different rates of light received signals, the three lenses 403 are configured as lens 403a, lens 403b and lens 403c, which are different from each other.

[0114] In conjunction with any of the above-mentioned example (1) schemes, in some examples, the light receiving component 4 further includes a plurality of fourth filters 404, which are respectively located in the receiving optical paths of the plurality of photoelectric converters 43. The plurality of fourth filters 404 are used to filter out the received optical signals of corresponding rates filtered out by the first filter 401 and the second filter 402 and transmit them to the corresponding lens 403. The fourth filter 404 can be a 0° filter. The fourth filter 404 is used to improve the isolation between received optical signals of different rates, avoid the introduction of impurity signals, and ensure that the received optical signals of their respective rates are smoothly transmitted to the corresponding photoelectric converters 43.

[0115] The structure of the fourth filter 404 is different for different optical received signals. For example, Figure 2 illustrates that for three different optical received signals, the three fourth filters 404 are configured as fourth filter 404a, fourth filter 404b and fourth filter 404c, which are different from each other.

[0116] In conjunction with any of the above-mentioned example (1) schemes, the aforementioned light receiving component 4 can be a semiconductor outline (TO) package structure based on a coaxial base, or a box package structure with a square housing. In some examples, the light receiving component 4 is a TO package structure. Figures 3 and 4 illustrate a three-in-one light receiving component 4 based on a TO package. Figure 3 illustrates the external shape of the light receiving component 4 in this TO package form. As shown in Figure 3, the second housing 41 of the light receiving component 4 includes a tube base 411 and a tube cap 412. The tube base 411 and the tube cap 412 are adapted to be connected to form a sealed cavity to accommodate the aforementioned second optical component 421, photoelectric converter 43, etc. The transparent light window 410 (i.e., the TO flat window) for light input and output is provided on the tube cap 412.

[0117] In addition, a plurality of pins 45 are provided on the side of the tube base 411 facing away from the transparent light window 410 for electrical connection between the light receiving component 4 and external electrical devices.

[0118] In some examples, a bracket 413 can be further provided within the tube base 411 to support the optical elements in the second optical assembly 421 as desired, ensuring that each element is in a suitable position. Of course, the bracket 413 in Figure 4 is for illustration only, and its specific structural form can be designed according to actual needs.

[0119] In this embodiment, all the photoelectric converters 43 involved can be optical chips for photoelectric conversion (including example (1) mentioned here and example (2) mentioned below), which can convert optical signals into electrical signals. For example, the photoelectric converter 43 can be a photodetector, photodiode, etc. Further, the light receiving component 4 provides a transimpedance amplifier 44 for each photoelectric converter 43. Each photoelectric converter 43 is electrically connected to the corresponding transimpedance amplifier 44. The transimpedance amplifier 44 is electrically connected to the aforementioned pin 45. The photoelectric converter 43 sends an electrical signal to the transimpedance amplifier 44 for amplification. Then, the transimpedance amplifier 512 transmits the amplified electrical signal to an external electrical device. For example, FIG4 illustrates that three different photoelectric converters 43a, 43b, and 43c are electrically connected to different transimpedance amplifiers 44a, 44b, and 44c, respectively.

[0120] In conjunction with any of the above-mentioned example (1) schemes, all the light emitting components 3 may include an optical chip for electro-optic conversion (including example (1) mentioned here and example (2) mentioned below) to convert electrical signals into optical signals. The optical chip for electro-optic conversion may be in the form of a laser or laser diode with modulation function, such as a direct modulation laser (DML) or an external modulation laser (EML). Furthermore, the light emitting component 3 also includes an optical component for wave combining, so that multiple light emission signals of different rates are combined to form a beam-combined light emission signal. After being transmitted through the third filter 501, the beam-combined light emission signal can be directly emitted from the optical port 2, or it can be converged by a converging lens before being emitted from the optical port 2.

[0121] For the scheme described in Example (1), when the optical emitting component 3 is a three-in-one type and the optical receiving component 4 is a three-in-one type, according to simulation calculations, the distance between the optical fiber input end of the optical port and the edge of the optical area (excluding pins) of the optical emitting component 3 (that is, the length dimension of the optical area on the first housing 1) is significantly smaller in the length direction compared to the current optical receiving device under the current specifications and technology.

[0122] In some examples (2), as shown in Figures 6 and 7, the optical transceiver includes multiple optical receiving components 4, which include a first optical receiving component 4a and a second optical receiving component 4b. The first optical receiving component 4a includes a third optical component 422 disposed inside the housing and one or more photoelectric converters 43. The second optical receiving component 4b includes a fourth optical component 423 disposed inside the housing and one or more photoelectric converters 43.

[0123] Each photoelectric converter 43 in the first light receiving component 4a and the second light receiving component 4b is used to receive light receiving signals at different rates. Exemplarily, the first light receiving component 4a and the second light receiving component 4b are independently arranged on different side walls of the first housing 1. The photoelectric converter 43 disposed inside the housing of the first light receiving component 4a is different from the photoelectric converter 43 disposed inside the housing of the second light receiving component 4b. Each photoelectric converter 43 is used to receive light receiving signals at a specific rate. Each photoelectric converter 43 can be adaptively designed according to the rate of the light receiving signal.

[0124] Taking a three-transmitter, three-receiver optical transceiver as an example, one of the first optical receiver 4a and the second optical receiver 4b can be configured as a dual-receiver combination, while the other can be configured as a single receiver. For example, Figure 7 illustrates that the first optical receiver 4a is a single receiver, with a first photoelectric converter 43a disposed inside its housing, and the second optical receiver 4b is a dual receiver, with a second photoelectric converter 43b and a third photoelectric converter 43c disposed at intervals inside its housing.

[0125] Regarding the optical received signals processed by the first photoelectric converter 43a, the second photoelectric converter 43b, and the third photoelectric converter 43c respectively, please refer to the first photoelectric converter 43a, the second photoelectric converter 43b, and the third photoelectric converter 43c involved in Example (1), which will not be repeated here.

[0126] For example (2), at least one of the third optical component 422 and the fourth optical component 423 includes a first filter 401, which is used to filter out the optical receiving signal at a preset rate and receive it by one of the photoelectric converters 43; one of the third optical component 422 and the fourth optical component 423 reflects the remaining rate optical receiving signal to the other of the third optical component 422 and the fourth optical component 423 through the first filter 401. The other of the third optical component 422 and the fourth optical component 423 also includes a second filter 402, which is used to sequentially filter out optical receiving signals at different rates from the remaining rate optical receiving signal and receive them by different photoelectric converters 43.

[0127] The optical transceiver devices involved in the above example (2) include, but are not limited to, dual-receiver schemes, triple-receiver schemes, quad-receiver schemes, or many other receiving schemes. The following will use triple-receiver schemes and quad-receiver schemes as examples for explanation.

[0128] For the three-receiver scheme, one of the third optical component 422 and the fourth optical component 423 may include a first filter 401, and the other of the third optical component 422 and the fourth optical component 423 may include a second filter 402. One of the third optical component 422 and the fourth optical component 423 filters out the optical receiving signal of a preset rate through the first filter 401 and reflects the optical receiving signal of the remaining wavelength to the other of the third optical component 422 and the fourth optical component 423. The second filter 402 is used to sequentially filter out optical receiving signals of different rates from the optical receiving signal of the remaining wavelength and receive them by different photoelectric converters 43.

[0129] For a four-receiver scheme, both the third optical component 422 and the fourth optical component 423 can include a first filter 401 and a second filter 402. For example, the third optical component 422 filters out the optical receiving signal at a preset rate through the first filter 401 and transmits the remaining three rates of optical receiving signals to the fourth optical component 423. The second filter 402 of the fourth optical component 423 filters out the second rate of optical receiving signal from the remaining three rates and reflects the remaining two rates of optical receiving signals back to the first filter 401 of the fourth optical component 423. The first filter 401 of the fourth optical component 423 filters out the third rate of optical receiving signal from the remaining rates and reflects the fourth rate of optical receiving signal back to the second filter 402 of the third optical component 422. The second filter 402 of the third optical component 422 filters out the fourth rate of optical receiving signal.

[0130] Furthermore, taking the cooperation of the first optical receiving component 4a and the second optical receiving component 4b to receive three different rates of optical receiving signals as an example, the operation mode of the third optical component 422 and the fourth optical component 423 is explained. Figure 7 illustrates the receiving optical path of this scheme. Referring to Figure 7, the combined optical signal from the optical port is incident into the interior of the first optical receiving component 4a after the optical path is deflected by the first optical component 5. Specifically, the combined optical signal is first received by the first filter 401. The first filter 401 filters out the first rate of optical receiving signal and reflects the remaining two rates of optical receiving signals to the outside of the cavity of the first optical receiving component 4a. The filtered first rate of optical receiving signal is finally received by the first photoelectric converter 43a. The remaining two rates of optical receiving signals reflected back into the cavity of the first housing 1 are transmitted to the cavity of the second optical receiving component 4b and received by the second filter 402b after the optical path is deflected by the first optical component 5. The second filter 402b filters out the optical receiving signal of the second communication protocol from the remaining two rates of optical receiving signals, and at the same time reflects the optical receiving signal of the third rate to the second filter 402c. The optical receiving signal of the second rate is finally received by the second photoelectric converter 43b, and the second filter 402c filters out the optical receiving signal of the third rate and is received by the third photoelectric converter 43c.

[0131] Compared with related technologies, the arrangement of the optical transceiver and optical receiver 4 provided in Example (3) has at least the following improvements: the incident light window of the optical receiver 4 is set as a transparent light window 410 to allow light to enter and exit without loss. Based on this, a first filter 401 is provided inside at least one of the first optical receiver 4a and the second optical receiver 4b, and a first optical component 5 that works in conjunction with the first filter 401 is provided inside the first housing 1 of the optical transceiver. In the receiving optical path shown in Figure 7, after the 50G PON received optical signal is filtered out by the small-angle first filter 401 provided in the first optical receiver 4a, the remaining two other received optical signals are reflected by the first filter 401 and emitted from the transparent light window 410 of the optical receiver 4, thus returning to the first housing 1 of the optical transceiver and further entering the second optical receiver 4b. Thus, the receiving optical path is lengthened and dispersed inside the first housing 1 and the second optical receiver 4b, realizing the separation between different received beams and achieving the purpose of preventing crosstalk. Since the first housing 1 and the second optical receiving component 4b have their own cavity space, by fully utilizing the cavity space of the first housing 1 and the second optical receiving component 4b, the size of the optical transceiver device in the length direction is effectively compressed.

[0132] As can be seen, the scheme described in Example (2) makes reasonable use of the space along the width direction of the first housing 1, reduces the space occupied in the length direction of the first housing 1, and significantly reduces the length dimension of the first housing 1. At the same time, the cavity dimension of the first light receiving component 4a, especially the height dimension between the transparent light window 410 of the first light receiving component 4a and the first photoelectric converter 43a, is significantly reduced. This also avoids the occupation of the cavity space of the optical transceiver device, which is particularly beneficial for reducing the width dimension of the first housing 1 in the optical transceiver device.

[0133] Furthermore, based on the third optical component 422 and the fourth optical component 423 involved in the above example (2), the structural arrangement of the first optical component 5, which works in cooperation with the third optical component 422 and the fourth optical component 423, can refer to the following example, which can continue to refer to FIG7. As shown in FIG7, the first optical component 5 includes a third filter 501, a reflector 503, and a prism 504; one of the optical port 2, the third filter 501, the reflector 503, the third optical component 422, and the fourth optical component 423, and the other of the prism 504, the third optical component 422, and the fourth optical component 423 are arranged sequentially along the receiving optical path. The third filter 501 is used to transmit light emission signals of various different rates and reflect the combined light signal to the reflector 503; the reflector 503 is used to reflect the combined light signal to the first filter 401; the prism 504 is used to reflect the remaining rate light reception signal from one of the third optical component 422 and the fourth optical component 423 to the other.

[0134] The difference between the first optical component 5 in Example (2) and the first optical component 5 in Example (1) is that the light reflecting element 502 is replaced by a prism 504, and the arrangement of the third filter 501 and the reflector 503 can be found in Example (1), which will not be repeated here.

[0135] Prism 504 is used to deflect the remaining rate optical receiving signal so that the remaining rate optical receiving signal is incident from one of the third optical component 422 and the fourth optical component 423 to the other in a perpendicular manner.

[0136] In conjunction with the above-mentioned example (2), the arrangement of each component in the first housing 1 can be seen in Figure 7. As shown in Figure 7, the optical port 2, the third filter 501, and the light emitting component 3 are arranged at intervals along the length of the first housing 1; the projections of the reflector 503 and the prism 504 on the line connecting the optical port 2 and the third filter 501 are all located between the optical port 2 and the third filter 501 and are arranged at intervals, and the first light receiving component 4a, the reflector 503 and the prism 504, and the second light receiving component 4b are arranged at intervals along the width of the first housing 1.

[0137] At least one light emitting component 3 and one light port 2 are disposed on two opposite sidewalls of the first housing 1 along its length. A third filter 501 is disposed on the light transmission path between the light port 2 and the light emitting component 3 to facilitate simultaneous processing of the transmitted and received light signals.

[0138] Figure 7 also shows that the reflector 503 and the prism 504 are located in the area between the optical port 2 and the third filter 501, with the reflector 503 being closer to the third filter 501 than the prism 504. However, the reflector 503 and the prism 504 are positioned away from the transmitting optical path to avoid optical path crosstalk. Thus, the projections of the reflector 503 and the prism 504 onto the line connecting the optical port 2 and the third filter 501 are both located between the optical port 2 and the third filter 501. Furthermore, the projections of both the reflector 503 and the prism 504 onto the aforementioned line are spaced apart along the length of the first housing 1 to ensure separation between different receiving optical paths.

[0139] Specifically, the first light receiving component 4a, the reflector 503 and the prism 504, and the second light receiving component 4b are arranged sequentially at intervals along the width direction of the first housing 1, as shown in Figures 6 and 7. This illustrates that the first light receiving component 4a and the second light receiving component 4b are respectively disposed on two side walls of the first housing 1 distributed along the width direction. Along the width direction of the first housing 1, the first light receiving component 4a and the second light receiving component 4b are located on opposite sides of the light emission path. The reflector 503 and the prism 504 can be located on the same side of the light emission path as either the first light receiving component 4a or the second light receiving component 4b, thereby making full and efficient use of the cavity space in the width direction of the first housing 1.

[0140] Regarding the above-mentioned example (2) scheme, in some examples, as shown in Figure 8, the optical transceiver further includes a movable support 6, with at least one of the prism 504 and the reflector 503 supported by the movable support 6. The movable support 6 is used to change the emission direction of the emitted light from at least one of the prism 504 and the reflector 503. For example, the prism 504 and the reflector 503 can each be supported by different movable supports 6.

[0141] By supporting the reflector 503 with the movable bracket 6, the emission direction of the light emitted from the reflector 503 can be changed by altering the position of the movable bracket 6, thereby adjusting the incident angle of the light received signal incident on the first light receiving component 4a. Similarly, by supporting the prism 504 with the movable bracket 6, the emission direction of the light emitted from the prism 504 can be changed by altering the position of the movable bracket 6, thereby adjusting the incident angle of the light received signal incident on the second light receiving component 4b. This ensures that the incident light signals are all incident at the desired angle, guaranteeing wavelength division accuracy. Furthermore, this reduces the requirements for the assembly accuracy of the components inside the first and second light receiving components 4a and 4b. The implementation scheme of the movable bracket 6 can be found in Example (1), and will not be repeated here.

[0142] For any of the above-mentioned example (2) schemes, this disclosure provides an example of a three-mode optical transceiver device, as shown in Figure 7. The first optical receiving component 4a in the three-mode optical transceiver device is used to receive optical receiving signals at a preset rate and includes a first photoelectric converter 43a and a first filter 401. The second optical receiving component 4b is used to receive optical receiving signals at the remaining two different rates and includes a second photoelectric converter 43b, a third photoelectric converter 43c and a second filter 402. The first filter 401 is located in the receiving optical path of the first photoelectric converter 43, and is used to filter out the first rate optical receiving signal and transmit it to the first photoelectric converter 43, and reflect the second rate optical receiving signal and the third rate optical receiving signal to the outside of the first optical receiving component 4a; one of the second filters 402b is located in the receiving optical path of the second photoelectric converter 43b, and is used to filter out the second rate optical receiving signal and transmit it to the second photoelectric converter 43b, and reflect the third rate optical receiving signal to another second filter 402c; the second filter 402c is located in the receiving optical path of the third photoelectric converter 43c, and is used to filter out the third rate optical receiving signal and transmit it to the third photoelectric converter 43c.

[0143] The first rate, second rate, and third rate decrease sequentially. They are filtered out in order of decreasing optical signal rate, so that the optical signal with higher rate is filtered out first. This helps to reduce the insertion loss of high-rate optical signals and ensures longer-distance link transmission.

[0144] For example, the first photoelectric converter 43a is used to receive 50G PON optical signals, the second photoelectric converter 43b is used to receive 10G PON optical signals, and the third photoelectric converter 43c is used to receive GPON optical signals.

[0145] The implementation schemes of the first filter 401, the second filter 402b, and the second filter 402c can be found in Example (1), and will not be repeated here.

[0146] Similarly, for any of the above-mentioned example (2) schemes, in some examples, the light receiving component 4 further includes a plurality of lenses 403, which are respectively located on the receiving optical path of a plurality of photoelectric converters 43. The plurality of lenses 403 are used to converge and transmit the received optical signals of the corresponding rates filtered out by the first filter 401 and the second filter 402 to the corresponding photoelectric converters 43, thereby ensuring that the received optical signals are fully transmitted to the photoelectric converters 43.

[0147] Furthermore, the optical receiving component 4 also includes a plurality of fourth filters 404, which are respectively located in the receiving optical paths of the plurality of photoelectric converters 43. The plurality of fourth filters 404 are used to filter out the received optical signals of corresponding rates filtered out by the first filter 401 and the second filter 402 and transmit them to the corresponding lenses 403. By using the fourth filters 404, the isolation between received optical signals of different rates is improved, ensuring that the received optical signals of their respective rates are smoothly transmitted to the corresponding photoelectric converters 43.

[0148] The implementation schemes of lens 403 and fourth filter 404 can refer to the lens 403 and fourth filter 404 involved in Example (1), and will not be repeated here.

[0149] In conjunction with any of the above-mentioned example (2) schemes, the first optical receiving component 4a and the second optical receiving component 4b can be TO packaged or BOX packaged. In some examples, the first optical receiving component 4a and the second optical receiving component 4b are both TO packaged. Their structure can still refer to the three-in-one optical receiving component 4 based on TO package shown in Figures 3 and 4. The difference is that the internally packaged third optical component 422, fourth optical component 423, and photoelectric converter 43 are different.

[0150] In summary, the embodiments of this disclosure propose an improved scheme for the receiving optical path to enter and exit the same or different optical receiving components 4. The receiving optical path folds back and forth within the cavity of the optical receiving component 4 to achieve optical folding. This disperses the cavity volume requirements of the small-angle filter within both the optical receiving component 4 and the cavity of the optical transceiver device, significantly compressing the volume of the transceiver device, especially its length. Therefore, the optical receiving device provided by the embodiments of this disclosure can meet the evolutionary trend and demands for miniaturization and integration of three generations of coexisting optical devices, while also reducing the cost of the optical receiving device and satisfying its low-cost requirements.

[0151] On the other hand, this disclosure also provides an optical module, as shown in Figure 10. The optical module includes: a third housing 300, an optical transceiver 100 housed in the third housing 300, and a circuit board 200. The optical transceiver 100 is as shown in any of the above descriptions, and the optical transceiver 100 includes an optical emitting component 3 and an optical receiving component 4. Both the optical emitting component 3 and the optical receiving component 4 are electrically connected to the circuit board 200.

[0152] The optical module provided in this disclosure has all the advantages of the optical transceivers described above. This optical module can be an onboard optical module or a pluggable optical module.

[0153] In the optical module, the optical port 2 of the optical transceiver 100 serves as both the optical signal input and output terminal for connecting to optical fibers. Both the optical emitting component 3 and the optical receiving component 4 are equipped with conductive connectors, such as pins, for electrical connection. For example, both the optical emitting component 3 and the optical receiving component 4 are electrically connected to the circuit board 200 using their pins. Furthermore, the circuit board 200 may be provided with gold fingers as electrical connector structures.

[0154] For example, the optical module is a pluggable optical module used in nodes of an access network and applied in scenarios such as urban broadband access networks, data centers, and home broadband.

[0155] In another aspect, embodiments of this disclosure also provide an optical communication device, which includes a fourth housing and the aforementioned optical module. The fourth housing has an interface, and the optical module is plugged into the interface.

[0156] The optical communication device provided in this disclosure has all the advantages of the optical transceiver devices and optical modules mentioned above.

[0157] For example, the optical communication device can be a PON device, such as an optical network unit (ONU), optical line terminal (OLT) device, optical network unit (ONU) device, optical network terminal (ONT) device, etc.

[0158] The above description is only for the purpose of enabling those skilled in the art to understand the technical solutions disclosed herein, and is not intended to limit the scope of this disclosure. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the protection scope of this disclosure.

Claims

1. An optical transceiver device, wherein, The optical transceiver device includes: a first housing (1), an optical port (2) and an optical receiving component (4) disposed on the first housing (1), and a first optical component (5) disposed inside the first housing (1); The first optical component (5) is used to transmit the combined optical signal from the optical port (2) to the inside of the optical receiving component (4), and the combined optical signal has a variety of different rates; The optical receiving component (4) includes at least a first filter (401), which is used to receive the combined optical signal, filter out the optical receiving signal at a preset rate from the combined optical signal, and reflect the remaining optical receiving signal to the outside of the optical receiving component (4). The first optical component (5) is used to receive the remaining rate optical receiving signal and transmit it again to the optical receiving component (4).

2. The optical transceiver device of claim 1, wherein, The light receiving component (4) is configured as one, and the light receiving component (4) includes a second housing (41), a second optical component (421) located at least partially inside the second housing (41), and a plurality of photoelectric converters (43), the plurality of photoelectric converters (43) being used to receive the various light receiving signals at different rates respectively; The second optical component (421) includes a first filter (401) and a second filter (402). The first filter (401) is used to filter out the light receiving signal at a preset rate and receive it by one of the photoelectric converters (43). The number of the second filters (402) is one or more. The second filters (402) are used to sequentially filter out light receiving signals at different rates from the remaining light receiving signals and receive them by different photoelectric converters (43).

3. The optical transceiver device of claim 2, wherein, The first optical component (5) includes a third filter (501), a light reflecting element (502), and a reflector (503); The optical port (2), the third filter (501), the reflector (503), the first filter (401), the optical reflection element (502), and the second filter (402) are arranged sequentially along the receiving optical path; The third filter (501) is used to reflect the combined light signal to the reflector (503); The reflector (503) is used to reflect the combined light signal to the first filter (401); The light reflecting element (502) is used to receive the light receiving signal of the remaining rate and reflect it to the second filter (402).

4. The optical transceiver device of claim 3, wherein, The optical port (2) and the third filter (501) are arranged at intervals along the length of the first housing (1); The projections of the reflector (503) and the light reflecting element (502) on the line connecting the light port (2) and the third filter (501) are both located between the light port (2) and the third filter (501) and are arranged at intervals. The light reflecting element (502) and the reflector (503) are arranged at intervals with the light receiving component (4) along the width direction of the first housing (1), wherein the width direction of the first housing (1) is perpendicular to the length direction of the first housing (1).

5. The optical transceiver device of claim 4, wherein, Along the length of the first housing (1), the reflector (503) is located between the third filter (501) and the light reflecting element (502); or, Along the length of the first housing (1), the light reflecting element (502) is located between the third filter (501) and the reflector (503).

6. The optical transceiver device of claim 3, wherein, The optical transceiver also includes a movable bracket (6), at least one of the optical reflective element (502) and the reflector (503) is supported by the movable bracket (6), and the movable bracket (6) is used to change the emission direction of the emitted light of at least one of the optical reflective element (502) and the reflector (503).

7. The optical transceiver device according to any one of claims 2-6, wherein, The optical receiving component (4) is used to receive three different rates of optical receiving signals. The optical receiving component (4) includes a first photoelectric converter (43a), a second photoelectric converter (43b), a third photoelectric converter (43c), a first filter (401), a second filter (402b), and a second filter (402c). The first filter (401) is located on the receiving optical path of the first photoelectric converter (43a) and is used to filter out the first rate optical receiving signal and transmit it to the first photoelectric converter (43a), and reflect the second rate optical receiving signal and the third rate optical receiving signal to the outside of the optical receiving component (4). The second filter (402b) is located in the receiving optical path of the second photoelectric converter (43b) and is used to filter out the second rate optical receiving signal and transmit it to the second photoelectric converter (43b), and reflect the third rate optical receiving signal to the second filter (402c); The second filter (402c) is located in the receiving optical path of the third photoelectric converter (43c) and is used to filter out the optical receiving signal of the third rate and transmit it to the third photoelectric converter (43c); The first rate, the second rate, and the third rate decrease sequentially.

8. The optical transceiver device of claim 1, wherein, The light receiving component (4) is configured as a plurality of components, including a first light receiving component (4a) and a second light receiving component (4b). The first light receiving component (4a) includes a third optical component (422) disposed inside the housing and one or more photoelectric converters (43). The second light receiving component (4b) includes a fourth optical component (423) disposed inside the housing and one or more photoelectric converters (43). Each photoelectric converter (43) in the first light receiving component (4a) and the second light receiving component (4b) is used to receive light receiving signals at different rates. At least one of the third optical component (422) and the fourth optical component (423) includes the first filter (401), which is used to filter out the light receiving signal at a preset rate and receive it by one of the photoelectric converters (43); One of the third optical component (422) and the fourth optical component (423) reflects the remaining rate optical receiving signal to the other of the third optical component (422) and the fourth optical component (423) through the first filter (401); The third optical component (422) and the fourth optical component (423) also include a second filter (402), which is used to sequentially filter out optical signals of different rates from the remaining rate optical received signals and receive them by different photoelectric converters (43).

9. The optical transceiver device of claim 8, wherein, The first optical component (5) includes a third filter (501), a mirror (503), and a prism (504); One of the optical port (2), the third filter (501), the reflector (503), the third optical component (422), and the fourth optical component (423), and the other of the prism (504), the third optical component (422), and the fourth optical component (423) are arranged sequentially along the receiving optical path; The third filter (501) is used to reflect the combined light signal to the reflector (503); The reflector (503) is used to reflect the combined light signal to the first filter (401); The prism (504) is used to reflect the remaining rate of the light received signal from one of the third optical component (422) and the fourth optical component (423) to the other.

10. The optical transceiver device of claim 9, wherein, The optical port (2) and the third filter (501) are arranged at intervals along the length of the first housing (1); The projections of the reflector (503) and the prism (504) onto the line connecting the optical port (2) and the third filter (501) are both located between the optical port (2) and the third filter (501) and are arranged at intervals. The first light receiving component (4a), the reflector (503), the prism (504), and the second light receiving component (4b) are arranged at intervals along the width direction of the first housing (1), wherein the width direction of the first housing (1) is perpendicular to the length direction of the first housing (1).

11. The optical transceiver device according to any one of claims 8-10, wherein, The first optical receiving component (4a) is used to receive optical receiving signals at a preset rate and includes a first photoelectric converter (43a) and a first filter (401). The second optical receiving component (4b) is used to receive optical receiving signals at two other different rates and includes a second photoelectric converter (43b), a third photoelectric converter (43c), a second filter (402b), and a second filter (402c). The first filter (401) is located on the receiving optical path of the first photoelectric converter (43) and is used to filter out the first rate optical receiving signal and transmit it to the first photoelectric converter (43), and reflect the second rate optical receiving signal and the third rate optical receiving signal to the outside of the first optical receiving component (4a). The second filter (402b) is located in the receiving optical path of the second photoelectric converter (43b) and is used to filter out the second rate optical receiving signal and transmit it to the second photoelectric converter (43b), and reflect the third rate optical receiving signal to the second filter (402c); The second filter (402c) is located in the receiving optical path of the third photoelectric converter (43c) and is used to filter out the optical receiving signal of the third rate and transmit it to the third photoelectric converter (43c); The first rate, the second rate, and the third rate gradually decrease.

12. The optical transceiver device according to any one of claims 2-11, wherein, The light receiving component (4) further includes a plurality of lenses (403), which are respectively located in the receiving optical path of the plurality of photoelectric converters (43). The plurality of lenses (403) are used to converge the received optical signals of the corresponding rate filtered out by the first filter (401) and the second filter (402) and transmit them to the corresponding photoelectric converters (43).

13. The optical transceiver device of claim 12, wherein, The light receiving component (4) further includes a plurality of fourth filters (404), which are respectively located in the receiving optical path of the plurality of photoelectric converters (43). The plurality of fourth filters (404) are used to filter out the received optical signals of the corresponding rate filtered out by the first filter (401) and the second filter (402) and transmit them to the corresponding lens (403).

14. The optical transceiver device of any of claims 1-13, wherein, The optical transceiver also includes an optical emitting component (3), which is used to emit optical signals at various rates and transmit them to the optical port (2) via the first optical component (5).

15. The optical transceiver device according to any one of claims 1-14, wherein, The light receiving component (4) is a coaxial package structure or a box package structure. The housing of the coaxial package structure or the box package structure has a transparent light window (410) for light entry and light exit. Optionally, the transparent light window (410) is a transparent planar light window.

16. An optical module, wherein, The optical module includes: a third housing (300), an optical transceiver (100) housed within the third housing (300), and a circuit board (200), wherein the optical transceiver (100) as described in any one of claims 1-15 includes an optical emitting component (3) and an optical receiving component (4), both of which are electrically connected to the circuit board (200).

17. An optical communication device, comprising: The optical communication device includes a fourth housing and the optical module as described in claim 16, wherein the fourth housing has an interface and the optical module is plugged into the interface.

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