An optical module

Abstract

The optical module disclosed herein includes: a circuit board with an optical chip; an optical fiber adapter; and a lens assembly having a first surface, a first connecting portion, and a second connecting portion formed on its bottom, with a second groove at one end and a first groove at the other end; the first connecting portion is located on one side of the first surface, and the second connecting portion is located on the other side of the first surface, connecting the first and second connecting portions to the circuit board; the first surface is located above the optical chip; a reflective surface is formed in the first groove, located above the first surface; a second surface is formed within the second groove; the optical fiber assembly includes: an optical fiber connector with a third groove at its bottom and an assembly end face formed at its end; a through hole is formed on the sidewall of the third groove, penetrating the assembly end face, and the assembly end face is connected to the lens assembly; an optical fiber ribbon, with one end connected to the optical fiber adapter and the other end connected to the third groove and the other end connected to the through hole; and a fastener connecting the optical fiber connector and the lens assembly. This design facilitates adaptation to the high-speed development needs of optical modules.

Description

Technical Field

[0001] This disclosure relates to the field of optical fiber communication technology, and in particular to an optical module. Background Technology

[0002] With the development of new business and application models such as cloud computing, mobile internet, and video, advancements in optical communication technology have become increasingly important. In optical communication technology, the optical module, as one of the key components in optical communication equipment, enables photoelectric signal conversion; and in the development of optical communication technology, the data transmission rate of optical modules is required to continuously improve. Utility Model Content

[0003] Some embodiments provide an optical module that is easy to adapt to the high-speed development needs of optical modules.

[0004] Some embodiments provide an optical module, including:

[0005] A circuit board is provided with an optical chip; the optical chip is electrically connected to the circuit board, and the optical chip generates or receives optical signals;

[0006] The fiber optic adapter is located at the optical port of the optical module;

[0007] The lens assembly has a first surface, a first connecting portion, and a second connecting portion formed at its bottom. A second groove is formed at one end, and a first groove is formed at the other end. The first connecting portion is located on one side of the first surface, and the second connecting portion is located on the other side of the first surface. The first connecting portion and the second connecting portion are connected to the circuit board. The first surface is located above the optical chip. A reflective surface is formed in the first groove, and the reflective surface is located above the first surface. A second surface is formed in the second groove.

[0008] Fiber optic components, including:

[0009] The fiber optic connector has a third groove at the bottom and an assembly end face at the end; a through hole is formed on the side wall of the third groove, the through hole penetrates the assembly end face, and the assembly end face is connected to the lens assembly.

[0010] The fiber optic ribbon has one end connected to the fiber optic adapter, the other end connected to the third groove, and the end connected to the through hole.

[0011] Fasteners that connect the optical fiber connector and the lens assembly.

[0012] One of the above technical solutions has the following advantages or beneficial effects: The bottom of the lens assembly forms a first surface, a first connecting portion, and a second connecting portion. One end of the lens assembly has a second groove, and the other end has a first groove. The first connecting portion and the second connecting portion connect to a circuit board, so that the first surface is located above the optical chip. The opening of the first groove is located on the side of the lens assembly, and a reflective surface is formed within the first groove. A second surface is formed within the second groove. The optical fiber assembly includes an optical fiber connector, an optical fiber ribbon, and fasteners. A third groove is formed at the bottom of the optical fiber connector, and an assembly end face is formed at the end of the optical fiber connector. A through hole is formed on the side wall of the third groove. One end of the optical fiber ribbon is connected to an optical fiber adapter, and the other end of the optical fiber ribbon is connected to the third groove. The end of the optical fiber ribbon is connected to the through hole, and its end face protrudes from the assembly end face. Fasteners connect the optical fiber connector and the lens assembly to reinforce the connection between the optical fiber connector and the lens assembly. The opening of the first groove is located on the side of the lens assembly, so that the reflective surface is away from one end or the center of the lens assembly, which facilitates reducing the size of the lens assembly.

[0013] The optical signal generated by the optical chip is transmitted to the first surface, collimated by the first surface, and then transmitted to the reflecting surface. It is then reflected by the reflecting surface and transmitted to the second surface, passing through the second surface to the end face of the fiber optic ribbon, coupled to the fiber optic ribbon, and transmitted through the fiber optic ribbon to the fiber optic adapter. Alternatively, the optical signal transmitted through the fiber optic cable is coupled to the fiber optic ribbon by the fiber optic adapter, transmitted through the fiber optic ribbon to the end face of the fiber optic ribbon, transmitted through the end face of the fiber optic ribbon to the second surface, transmitted through the second surface to the reflecting surface, reflected by the reflecting surface to the first surface, and transmitted through the first surface to the optical receiving chip. Compared to connecting the fiber optic ribbon to the lens assembly via fiber optic connectors, using fiber optic connectors to connect the fiber optic ribbon and the lens assembly can relatively reduce the size of the lens assembly. The fiber optic ribbon can include multiple fibers, forming multiple transmission channels in the optical module. This combination of directly connecting the fiber optic ribbon to the lens assembly body and including multiple fibers in the fiber optic ribbon allows for a reduction in the size of the lens assembly, or the transmission of more optical signal channels on a lens assembly of similar size, facilitating adaptation to the high-speed development needs of optical modules.

[0014] In some embodiments, an optical module is provided, wherein the optical fiber assembly further includes a cover plate, the bottom of which is connected to the optical fiber strip, and the sides of which are connected to the optical fiber connectors.

[0015] One of the above technical solutions has the following advantages or beneficial effects: the bottom of the cover plate is connected to the optical fiber ribbon, and the side of the cover plate is connected to the optical fiber connector, which facilitates the reinforcement of the connection between the optical fiber ribbon and the optical fiber connector, and can reduce the damage to the end of the optical fiber ribbon caused by bending.

[0016] In some embodiments, an optical module is provided, wherein a support platform is provided in the third groove, and a connecting groove is formed on the support platform, the connecting groove being connected to the optical fiber strip.

[0017] One of the above technical solutions has the following advantages or beneficial effects: a support platform is provided within the third groove, and a connecting groove is formed on the support platform for connecting the optical fiber ribbon. The support platform protrudes from the third groove, facilitating the raising of the optical fiber ribbon. The connecting groove can limit the connection of the optical fiber ribbon, facilitating the connection of the optical fiber ribbon to the optical fiber connector.

[0018] In some embodiments, an optical module is provided, wherein a first positioning hole and a second positioning hole are formed on the assembly end face, a first protrusion is formed on the side of the first positioning hole, and a second protrusion is formed on the side of the second positioning hole;

[0019] One end of the lens assembly is formed with a first positioning post and a second positioning post, the side of the first positioning post is formed with a first notch, and the side of the second positioning post is formed with a second notch.

[0020] The first positioning hole is positioned and connected to the first positioning post, the second positioning hole is positioned and connected to the second positioning post, the first protrusion is connected to the first notch, and the second protrusion is connected to the second notch.

[0021] One of the above technical solutions has the following advantages or beneficial effects: the first positioning hole positions and connects to the first positioning post, the second positioning hole positions and connects to the second positioning post, the first protrusion connects to the first notch, and the second protrusion connects to the second notch. This facilitates the assembly and connection of the fiber optic connector to the lens assembly and ensures the connection strength between the fiber optic connector and the lens assembly. The first and second positioning posts are located on the lens assembly, which helps to reduce the impact of the positioning connection between the fiber optic connector and the lens assembly on the formation of the lens assembly.

[0022] In some embodiments, an optical module is provided, wherein a first lens is formed on a first surface and a second lens is formed on a second surface; the focal point of the first lens is located on the optical chip, and the focal point of the second lens is located on the end face of the optical fiber strip.

[0023] One of the above technical solutions has the following advantages or beneficial effects: a first lens is formed on the first surface, and the first lens can converge optical signals. The first lens can converge the optical signals generated by the laser chip to transmit the optical signals generated by the laser chip to the reflecting surface, or the first lens can converge and transmit the optical signals to the optical receiving chip. The focal point of the first lens can be located on the laser chip or the optical receiving chip, which facilitates ensuring the coupling efficiency of the optical signal to the lens assembly or the optical signal to the optical receiving chip.

[0024] A second lens is formed on the second surface. The second lens can converge optical signals. The second lens collimates the optical signal output from the fiber optic strip; or, the optical signal reflected by the reflecting surface is converged and transmitted to the fiber optic strip via the second lens. The focal point of the second lens can be located on the end face of the fiber optic strip, which facilitates ensuring the coupling efficiency of optical signal transmission between the fiber optic strip and the lens assembly.

[0025] In some embodiments, an optical module is provided, wherein the fastener includes a first connecting plate, a bridging plate, and a second connecting plate; one end of the bridging plate is connected to the top end of the first connecting plate, and the other end of the bridging plate is connected to the top end of the second connecting plate;

[0026] One end of the optical fiber connector is assembled and connected to the inner side of the first connecting plate, and the lens assembly is assembled and connected to the inner side of the second connecting plate.

[0027] One of the above technical solutions has the following advantages or beneficial effects: the inner side of the first connecting plate and the inner side of the second connecting plate are arranged opposite to each other, one end of the connecting fiber optic connector is assembled on the inner side of the first connecting plate, and the other end of the connecting lens assembly is assembled on the inner side of the second connecting plate, which facilitates the reinforcement of the connection between the connecting fiber optic connector and the lens assembly.

[0028] In some embodiments, an optical module is provided, wherein a first clearance hole is formed on one side of the bridging board and a second clearance hole is formed on the other side of the bridging board; the first clearance hole and the second clearance hole are located above the mounting end face.

[0029] One of the above technical solutions has the following advantages or beneficial effects: a first clearance hole is formed on one side of the bridging plate, and a second clearance hole is formed on the other side of the bridging plate. The first and second clearance holes are located above the assembly end face, which facilitates placing the first and second clearance holes above the connection between the fiber optic connector and the lens assembly. This allows for the application of adhesive to connect the fiber optic connector and the lens assembly after the fasteners are assembled and connected, thus ensuring the connection strength between the fiber optic connector and the lens assembly.

[0030] In some embodiments, an optical module is provided, wherein a first reinforcing rib is formed on the first connecting portion, and a second reinforcing rib is formed on the second connecting portion; the first reinforcing rib and the second reinforcing rib extend to the first surface;

[0031] The first connecting portion has a first avoidance angle at its end, and the second connecting portion has a second avoidance angle at its end, with the first avoidance angle and the second avoidance angle avoiding the optical chip.

[0032] One of the above technical solutions has the following advantages or beneficial effects: a first reinforcing rib is formed on the first connecting part, a second reinforcing rib is formed on the second connecting part, and the first and second reinforcing ribs extend to the first surface, which facilitates the improvement of the strength of the first and second connecting parts, thereby facilitating the connection strength between the lens assembly and the circuit board.

[0033] The end of the first connecting part forms a first avoidance angle, and the end of the second connecting part forms a second avoidance angle, which facilitates the lens assembly to avoid the optical chip, etc., and thus facilitates the lens assembly to adapt to optical chips of different sizes.

[0034] Some embodiments provide an optical module, including:

[0035] A circuit board is provided with a laser chip array; the laser chip array is electrically connected to the circuit board and generates optical signals;

[0036] The fiber optic adapter is located at the optical port of the optical module;

[0037] A lens assembly has a first surface formed at its bottom, a second groove formed at one end, and a first groove formed at the other end; the bottom of the lens assembly is connected to the circuit board, such that the first surface is located above the laser chip array; a reflective surface is formed in the first groove, and the reflective surface is located above the first surface, and a first lens is formed on the first surface; a second surface is formed in the second groove, and a second lens is formed on the second surface;

[0038] Fiber optic components, including:

[0039] The fiber optic connector has a third groove at the bottom and an assembly end face at the end; a through hole is formed on the side wall of the third groove, the through hole penetrates the assembly end face, and the assembly end face is connected to the lens assembly.

[0040] The fiber optic ribbon has one end connected to the fiber optic adapter, the other end connected to the third groove, and the end face connected to the through hole; the end face of the fiber optic ribbon is located in the second groove.

[0041] Fasteners that connect the optical fiber connector and the lens assembly.

[0042] Another technical solution in the above-mentioned technical solution has the following advantages or beneficial effects: A first surface is formed at the bottom of the lens assembly, a second groove is formed at one end of the lens assembly, and a first groove is formed at the other end of the lens assembly. The bottom of the lens assembly is connected to a circuit board, so that the first surface is located above the laser chip array, and a first lens is disposed on the first surface. The opening of the first groove is located on the side of the lens assembly, and a reflecting surface is formed inside the first groove. A second surface is formed inside the second groove, and a second lens is formed on the second surface. The fiber optic assembly includes a fiber optic connector, a fiber optic ribbon, and fasteners. A third groove is formed at the bottom of the fiber optic connector, and an assembly end face is formed at the end of the fiber optic connector. A through hole is formed on the side wall of the third groove. One end of the fiber optic ribbon is connected to a fiber optic adapter, and the other end of the fiber optic ribbon is connected to the third groove. The end of the fiber optic ribbon is connected to the through hole, and its end face protrudes from the assembly end face. Fasteners connect the fiber optic connector and the lens assembly to reinforce the connection between the fiber optic connector and the lens assembly. The opening of the first groove is located on the side of the lens assembly, so that the reflecting surface is away from one end or the center of the lens assembly, which facilitates reducing the size of the lens assembly.

[0043] The optical signal generated by the laser chip array is transmitted to the first lens, collimated by the first lens, and then transmitted to the reflecting surface. It is then reflected by the reflecting surface and transmitted to the second lens, converged by the second lens, and transmitted to the end face of the fiber optic ribbon. Coupled to the fiber optic ribbon, the signal is then transmitted to the fiber optic adapter. The fiber optic ribbon connects to the lens assembly via fiber optic connectors, and fiber optic connectors connect the fiber optic ribbon and the lens assembly, which can relatively reduce the size of the lens assembly. The fiber optic ribbon can include multiple optical fibers, forming multiple transmission channels within the optical module. This combination of directly connecting the fiber optic ribbon to the lens assembly body and including multiple optical fibers in the fiber optic ribbon allows for a reduction in the size of the lens assembly, or the transmission of more optical signals within a lens assembly of similar size, facilitating adaptation to the high-speed development requirements of optical modules.

[0044] Some embodiments provide an optical module, including:

[0045] A circuit board is provided with an array of optical receiving chips; the array of optical receiving chips is electrically connected to the circuit board, and the optical receiving chips receive optical signals;

[0046] The fiber optic adapter is located at the optical port of the optical module;

[0047] A lens assembly has a first surface formed at its bottom, a second groove at one end, and a first groove at the other end; the bottom of the lens assembly is connected to the circuit board, such that the first surface is located above the light receiving chip array; a reflective surface is formed in the first groove, and the reflective surface is located above the first surface, and a first lens is formed on the first surface; a second surface is formed in the second groove, and a second lens is formed on the second surface.

[0048] Fiber optic components, including:

[0049] The fiber optic connector has a third groove at the bottom and an assembly end face at the end; a through hole is formed on the side wall of the third groove, the through hole penetrates the assembly end face, and the assembly end face is connected to the lens assembly.

[0050] The fiber optic ribbon has one end connected to the fiber optic adapter, the other end connected to the third groove, and the end face connected to the through hole; the end face of the fiber optic ribbon is located in the second groove.

[0051] Fasteners that connect the optical fiber connector and the lens assembly.

[0052] Another technical solution in the above-mentioned technical solution has the following advantages or beneficial effects: A first surface is formed at the bottom of the lens assembly, a second groove is formed at one end of the lens assembly, and a first groove is formed at the other end of the lens assembly. The bottom of the lens assembly is connected to a circuit board, so that the first surface is located above the optical receiving chip array, and a first lens is disposed on the first surface. The opening of the first groove is located on the side of the lens assembly, and a reflecting surface is formed inside the first groove. A second surface is formed inside the second groove, and a second lens is formed on the second surface. The optical fiber assembly includes an optical fiber connector, an optical fiber ribbon, and fasteners. A third groove is formed at the bottom of the optical fiber connector, and an assembly end face is formed at the end of the optical fiber connector. A through hole is formed on the side wall of the third groove. One end of the optical fiber ribbon is connected to an optical fiber adapter, and the other end of the optical fiber ribbon is connected to the third groove. The end of the optical fiber ribbon is connected to the through hole, and its end face protrudes from the assembly end face. Fasteners connect the optical fiber connector and the lens assembly to reinforce the connection between the optical fiber connector and the lens assembly. The opening of the first groove is located on the side of the lens assembly, so that the reflecting surface is away from one end or the center of the lens assembly, which facilitates reducing the size of the lens assembly.

[0053] The optical signal transmitted via optical fiber is coupled to the fiber optic ribbon at the fiber optic adapter, transmitted through the fiber optic ribbon to its end face, then through the end face to the second lens, collimated by the second lens, and transmitted to the reflecting surface. After reflection, it is transmitted to the first lens, and finally converged by the first lens to the optical receiver chip array. The fiber optic ribbon connects to the lens assembly via fiber optic connectors, and fiber optic connectors connect the fiber optic ribbon and the lens assembly, which can relatively reduce the size of the lens assembly. The fiber optic ribbon can include multiple optical fibers, forming multiple transmission channels within the optical module. This combination of directly connecting the fiber optic ribbon to the lens assembly body and including multiple optical fibers in the fiber optic ribbon allows for a reduction in the size of the lens assembly, or the transmission of more optical signals within a lens assembly of similar size, facilitating adaptation to the high-speed development needs of optical modules. Attached Figure Description

[0054] To more clearly illustrate the technical solutions in this disclosure, the accompanying drawings used in some embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are only drawings of some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams and are not intended to limit the actual size of the product, the actual flow of the method, the actual timing of the signals, etc. involved in the embodiments of this disclosure.

[0055] Figure 1 This is a partial architecture diagram of an optical communication system according to some embodiments;

[0056] Figure 2 This is a partial structural diagram of a host computer according to some embodiments;

[0057] Figure 3 This is a structural diagram of an optical module according to some embodiments;

[0058] Figure 4 An exploded view of an optical module according to some embodiments;

[0059] Figure 5A This is a structural diagram of the internal structure of an optical module according to some embodiments;

[0060] Figure 5B This is an exploded view of the internal structure of an optical module according to some embodiments;

[0061] Figure 6A Assembly of a lens assembly and an optical fiber assembly according to some embodiments Figure 1 ;

[0062] Figure 6B Assembly of a lens assembly and an optical fiber assembly according to some embodiments Figure 2 ;

[0063] Figure 6C An assembly of a lens assembly and an optical fiber assembly according to some embodiments Figure 3 ;

[0064] Figure 6D An exploded view of a lens assembly and an optical fiber assembly according to some embodiments;

[0065] Figure 7A Structure of a lens assembly according to some embodiments Figure 1 ;

[0066] Figure 7B Structure of a lens assembly according to some embodiments Figure 2 ;

[0067] Figure 7CStructure of a lens assembly according to some embodiments Figure 3 ;

[0068] Figure 8A The structure of an optical fiber connector according to some embodiments Figure 1 ;

[0069] Figure 8B The structure of an optical fiber connector according to some embodiments Figure 2 ;

[0070] Figure 8C A cross-sectional view of an optical fiber connector according to some embodiments.

[0071] Figure 9A An assembly of an optical fiber connector and an optical fiber ribbon according to some embodiments. Figure 1 ;

[0072] Figure 9B An assembly of an optical fiber connector and an optical fiber ribbon according to some embodiments. Figure 2 ;

[0073] Figure 9C A cross-sectional view of an optical fiber connector and optical fiber ribbon according to some embodiments;

[0074] Figure 10 This is a usage diagram of an optical fiber connector and lens assembly according to some embodiments;

[0075] Figure 11 This is a usage diagram of another fiber optic connector and lens assembly according to some embodiments. Detailed Implementation

[0076] The embodiments of this disclosure will now be described clearly and in detail with reference to the accompanying drawings. However, the described embodiments are merely some, and not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the embodiments provided in this disclosure are within the scope of protection of this disclosure.

[0077] Unless the context otherwise requires, throughout the specification and claims, the term "comprising" is interpreted as open and inclusive, meaning "including, but not limited to"; the terms "first" and "second" should not be construed as indicating or implying relative importance or indicating an upper limit on the number; the term "multiple" means two or more; the term "connection" should be interpreted broadly, for example, "connection" can be a fixed connection, a detachable connection, or an integral part, and can be a direct connection or an indirect connection through an intermediate medium; the use of the terms "applicable to" or "configured to" implies open and inclusive language, which does not exclude applicability to or configuration to devices performing additional tasks or steps; descriptions such as "parallel," "perpendicular," "identical," "consistent," and "aligned" are not limited to absolute mathematical theoretical relationships, but also include acceptable error ranges arising in practice, and differences based on the same design concept but due to manufacturing reasons.

[0078] In optical communication technology, to establish information transmission between information processing devices, information needs to be loaded onto light, and the propagation of light is used to transmit the information. Here, the light carrying the information is called an optical signal. When optical signals are transmitted in information transmission equipment, optical power loss can be reduced, thus enabling high-speed, long-distance, and low-cost information transmission. Information processing devices can recognize and process electrical signals. Information processing devices typically include optical network units (ONUs), gateways, routers, switches, mobile phones, computers, servers, tablets, televisions, etc., while information transmission equipment typically includes optical fibers and optical waveguides.

[0079] An optical module enables the conversion between optical and electrical signals between information processing and transmission devices. For example, at least one of the optical signal input or output ports of the optical module is connected to an optical fiber, and at least one of the electrical signal input or output ports is connected to an optical network terminal. A first optical signal from the optical fiber is transmitted to the optical module, which converts it into a first electrical signal and transmits it to the optical network terminal. A second electrical signal from the optical network terminal is transmitted to the optical module, which converts it into a second optical signal and transmits it back to the optical fiber. Since multiple information processing devices can transmit information via electrical signals, at least one of the devices needs to be directly connected to the optical module, rather than all devices. Here, the information processing device directly connected to the optical module is referred to as the host computer of the optical module. Furthermore, the optical signal input or output port of the optical module can be referred to as an optical port, and the electrical signal input or output port can be referred to as an electrical port.

[0080] Figure 1 This is a partial structural diagram of an optical communication system provided according to some embodiments of the present disclosure. Figure 1 As shown, the optical communication system mainly includes a remote information processing device 1000, a local information processing device 2000, a host computer 100, an optical module 200, an optical fiber 101, and a network cable 103.

[0081] One end of optical fiber 101 extends toward the remote information processing device 1000, and the other end of optical fiber 101 is connected to optical module 200 through the optical port of optical module 200. The optical signal can undergo total internal reflection in optical fiber 101, and the propagation of the optical signal in the direction of total internal reflection can almost maintain the original optical power. The optical signal undergoes multiple total internal reflections in optical fiber 101 to transmit the optical signal from the remote information processing device 1000 to optical module 200, or to transmit the optical signal from optical module 200 to remote information processing device 1000, thereby realizing long-distance, low-power loss information transmission.

[0082] The optical communication system may include one or more optical fibers 101, and the optical fibers 101 may be detachably or fixedly connected to the optical module 200. The host computer 100 is configured to provide data signals to the optical module 200, receive data signals from the optical module 200, or monitor or control the operating status of the optical module 200.

[0083] The host computer 100 includes a generally rectangular housing and an optical module interface 102 disposed on the housing. The optical module interface 102 is configured to connect to the optical module 200 so that the host computer 100 and the optical module 200 can establish a one-way or two-way electrical signal connection.

[0084] The host computer 100 also includes an external power interface that can connect to an electrical signal network. For example, this external power interface includes a Universal Serial Bus (USB) interface or a network cable interface 104, which is configured to connect a network cable 103 to establish a unidirectional or bidirectional electrical signal connection between the host computer 100 and the network cable 103. One end of the network cable 103 is connected to the local information processing device 2000, and the other end of the network cable 103 is connected to the host computer 100, thereby establishing an electrical signal connection between the local information processing device 2000 and the host computer 100 via the network cable 103. For example, a third electrical signal emitted by the local information processing device 2000 is transmitted to the host computer 100 via the network cable 103. The host computer 100 generates a second electrical signal based on the third electrical signal. This second electrical signal from the host computer 100 is transmitted to the optical module 200, which converts the second electrical signal into a second optical signal and transmits it to the optical fiber 101. The second optical signal is then transmitted in the optical fiber 101 to the remote information processing device 1000. Alternatively, a first optical signal from the remote information processing device 1000 propagates through the optical fiber 101 and is transmitted to the optical module 200. The optical module 200 converts the first optical signal into a first electrical signal and transmits it to the host computer 100. The host computer 100 generates a fourth electrical signal based on the first electrical signal and transmits the fourth electrical signal to the local information processing device 2000. It should be noted that an optical module is a tool for converting optical signals to electrical signals. During the conversion process, the information itself does not change, but the encoding and decoding methods can change.

[0085] In addition to optical network terminals, the host computer 100 also includes optical line terminals (OLTs), optical network equipment (ONTs), or data center servers.

[0086] Figure 2 This is a partial structural diagram of a host computer provided according to some embodiments of the present disclosure. To clearly show the connection relationship between the optical module 200 and the host computer 100, Figure 2 Only the structure of the host computer 100 related to the optical module 200 is shown. For example... Figure 2 As shown, the host computer 100 also includes a PCB circuit board 105 disposed within the housing, a cage 106 disposed on the surface of the PCB circuit board 105, a heat sink 107 disposed on the cage 106, and an electrical connector disposed inside the cage 106. The electrical connector is configured to connect to the electrical port of the optical module 200; the heat sink 107 has fins and other protruding structures to increase the heat dissipation area.

[0087] The optical module 200 is inserted into the cage 106 of the host computer 100, where it is secured. Heat generated by the optical module 200 is conducted to the cage 106 and then dissipated through the heat sink 107. After insertion into the cage 106, the optical module 200's electrical port connects to the electrical connector inside the cage 106, establishing a bidirectional electrical signal connection between the optical module 200 and the host computer 100. Furthermore, the optical port of the optical module 200 connects to the optical fiber 101, establishing a bidirectional optical signal connection between the optical module 200 and the optical fiber 101.

[0088] Figure 3 This is a structural diagram of an optical module according to some embodiments. Figure 4 This is an exploded view of an optical module according to some embodiments. Figure 3 and Figure 4 As shown, in some embodiments, the optical module 200 includes a shell, which comprises an upper shell 201 and a lower shell 202. The upper shell 201 covers the lower shell 202, forming two openings 203 and 204, one of which is an electrical port and the other is an optical port. In some embodiments, the shell forms an opening that serves as both an electrical port and an optical port.

[0089] In some embodiments, the upper housing 201 and the lower housing 202 are made of metal materials, which facilitates electromagnetic shielding and heat dissipation.

[0090] The assembly method of combining the upper housing 201 and the lower housing 202 facilitates the installation of circuit boards 300 and other components into the housing. The upper housing 201 and the lower housing 202 can encapsulate and protect the aforementioned devices.

[0091] The direction of the line connecting the two openings 203 and 204 can be consistent with or inconsistent with the length direction of the optical module 200. For example, opening 203 is located at the end of the optical module 200. Figure 3 The opening 204 is also located at the end of the optical module 200 (right end). Figure 3 (The left end). Alternatively, opening 203 is located at the end of optical module 200, while opening 204 is located on the side of optical module 200.

[0092] In some embodiments, the lower housing 202 includes a base plate 2021 and two lower side plates 2022 located on both sides of the base plate 2021 and perpendicular to the base plate 2021; the upper housing 201 includes a cover plate 2011, which covers the two lower side plates 2022 of the lower housing 202 to form the aforementioned housing.

[0093] In some embodiments, the lower housing 202 includes a base plate 2021 and two lower side plates 2022 located on both sides of the base plate 2021 and perpendicular to the base plate 2021; the upper housing 201 includes a cover plate 2011 and two upper side plates located on both sides of the cover plate 2011 and perpendicular to the cover plate 2011. The two upper side plates and the two lower side plates 2022 are combined to realize that the upper housing 201 covers the lower housing 202.

[0094] like Figure 3 and Figure 4 As shown, in some embodiments, the optical module includes a circuit board 300 disposed within a housing. The circuit board 300 includes circuit traces, electronic components, and chips, etc. The electronic components and chips are connected according to the circuit design through the circuit traces to realize functions such as power supply, electrical signal transmission, and grounding. Electronic components may include, for example, capacitors, resistors, transistors, and metal-oxide-semiconductor field-effect transistors (MOSFETs). Chips may include microcontroller units (MCUs), laser driver chips, transimpedance amplifiers (TIAs), limiting amplifiers (LAs), clock and data recovery chips (CDRs), power management chips, and digital signal processing (DSP) chips.

[0095] In some embodiments, the circuit board includes a rigid circuit board, which, due to its relatively rigid material, can also serve a load-bearing function, such as being able to stably support the aforementioned electronic components and chips; the rigid circuit board can also be inserted into an electrical connector in the cage 106 of the host computer 100.

[0096] In some embodiments, the circuit board further includes a flexible circuit board, which can be used independently or in conjunction with a rigid circuit board.

[0097] In some embodiments, the circuit board further includes gold fingers formed on its end surface, the gold fingers consisting of a plurality of independent pins.

[0098] In some implementations, the gold fingers 301 are disposed on one side of the surface of the circuit board 300 (e.g., Figure 4 (as shown on the upper surface); In some implementations, the gold fingers 301 are disposed on the upper and lower surfaces of the circuit board 300 to provide a greater number of pins, thereby adapting to situations where the number of pins is required.

[0099] In some implementations, the gold fingers of the circuit board extend from the opening 203 and are inserted into the electrical connector of the host computer 100; the circuit board is inserted into the cage 106, and the gold fingers 301 are connected to the electrical connector inside the cage 106. The gold fingers 301 are configured to establish an electrical connection with the host computer, enabling electrical connection functions such as power supply, grounding, two-wire synchronous serial (Inter-Integrated Circuit, I2C) signal transmission, and data signal transmission.

[0100] In some embodiments, the optical module 200 further includes an unlocking component 600 located outside its housing. The unlocking component 600 is configured to establish a fixed connection between the optical module 200 and the host computer, or to release the fixed connection between the optical module 200 and the host computer.

[0101] For example, the unlocking component 600 is located on the outside of the two lower side plates 2022 of the lower housing 202, and includes a locking component that matches the cage 106 of the host computer 100. When the optical module 200 is inserted into the cage 106, the locking component of the unlocking component 600 fixes the optical module 200 in the cage 106; when the unlocking component 600 is pulled, the locking component of the unlocking component 600 moves accordingly, thereby changing the connection relationship between the locking component and the host computer, so as to release the fixation between the optical module 200 and the host computer, thereby allowing the optical module 200 to be pulled out of the cage 106.

[0102] In some embodiments, the optical module 200 includes a fiber optic adapter 700. The fiber optic adapter 700 is disposed within an optical port. The fiber optic adapter 700 is used to connect to the optical fiber 101. Exemplarily, the fiber optic adapter 700 is used to connect to a fiber optic connector on the optical fiber 101.

[0103] In some embodiments, an optical chip is disposed on the circuit board 300. The optical chip may include a laser chip, which emits light or generates optical signals. The optical chip may also include a light receiving chip, which receives optical signals.

[0104] In some embodiments, the optical module 200 includes a lens assembly 400. The lens assembly 400 is disposed on the optical chip, and its bottom is connected to the circuit board 300. The lens assembly 400 is used to change the transmission direction of the optical signal. For example, when the lens assembly 400 is disposed on a laser chip, it changes the optical signal transmitted along the height direction of the optical module to the optical signal transmitted along the length direction of the optical module; when the lens assembly 400 is disposed on a light receiving chip, it changes the optical signal transmitted along the length direction of the optical module to the optical signal transmitted along the height direction of the optical module.

[0105] In some embodiments, the optical module 200 includes an optical fiber assembly 500. The optical fiber assembly 500 is used to establish an optical connection between the lens assembly 400 and the optical fiber adapter 700, thereby enabling the transmission of optical signals between the optical fiber 101 and the lens assembly 400; for example, transmitting optical signals output from the lens assembly 400 to the optical fiber 101, or transmitting optical signals output from the optical fiber 101 to the lens assembly 400. Exemplarily, the optical fiber assembly 500 includes an optical fiber ribbon 510, one end of which is connected to the optical fiber adapter 700, and the other end of which is connected to the lens assembly 400.

[0106] In some implementations, optical module 200 may include multiple fiber optic adapters 700. Of course, in some embodiments, optical module 200 may include a single fiber optic adapter 700.

[0107] Figure 5A This is a diagram illustrating the internal structure of an optical module according to some embodiments. Figure 5B This is an exploded view of the internal structure of an optical module according to some embodiments. For example... Figure 5A and Figure 5B As shown, in some embodiments, an optical chip 310 is disposed on the circuit board 300. The optical chip 310 may include a laser chip, a laser chip array, an optical receiver chip, or an optical receiver chip array, etc. For example, the laser chip array can generate multiple beams of light signals, and the optical receiver chip array can receive multiple beams of light signals.

[0108] In some embodiments, a matching chip may be disposed below the lens assembly 400. The matching chip includes a laser driver chip or a TIA, etc.

[0109] In some embodiments, the optical module 200 may include a plurality of lens assemblies 400, such as two, three, or four lens assemblies 400. Each lens assembly 400 is connected to an optical fiber assembly 500.

[0110] In some embodiments, the optical module 200 may include a first lens assembly 400a, a second lens assembly 400b, a third lens assembly 400c, and a fourth lens assembly 400d. Exemplarily, the first lens assembly 400a may be located above a laser chip or a light receiving chip, the second lens assembly 400b may be located above a light receiving chip or a laser chip, the third lens assembly 400c may be located above a laser chip or a light receiving chip, and the fourth lens assembly 400d may be located above a light receiving chip or a laser chip; or, the first lens assembly 400a may be located above both the laser chip and the light receiving chip, the second lens assembly 400b may be located above both the laser chip and the light receiving chip, the third lens assembly 400c may be located above both the laser chip and the light receiving chip, and the fourth lens assembly 400d may be located above both the laser chip and the light receiving chip.

[0111] The first lens assembly 400a is connected to the first optical fiber assembly 500a, the second lens assembly 400b is connected to the second optical fiber assembly 500b, the third lens assembly 400c is connected to the third optical fiber assembly 500c, and the fourth lens assembly 400d is connected to the fourth optical fiber assembly 500d.

[0112] In some embodiments, a first DSP chip 320 may be disposed on the circuit board 300. The first DSP chip 320 is located on the side of the lens assembly 400. Exemplarily, the first DSP chip 320 is located between the lens assembly 400 and the gold finger 301, and the first DSP chip 320 is close to the lens assembly 400.

[0113] In some embodiments, a second DSP chip 330 may be disposed on the circuit board 300. The second DSP chip 330 is located on the side of the lens assembly 400. Exemplarily, the second DSP chip 330 is located between the lens assembly 400 and the gold finger 301, and the first DSP chip 320 is close to the lens assembly 400. The second DSP chip 330 may be disposed side by side with the first DSP chip 320 on the circuit board 300.

[0114] In some embodiments, the first lens assembly 400a, the second lens assembly 400b, the third lens assembly 400c, and the fourth lens assembly 400d may be arranged side-by-side or not side-by-side. Exemplarily, the first lens assembly 400a, the second lens assembly 400b, the third lens assembly 400c, and the fourth lens assembly 400d may be staggered along the width direction of the circuit board 300. Of course, in some embodiments, the first lens assembly 400a, the second lens assembly 400b, the third lens assembly 400c, and the fourth lens assembly 400d are arranged side-by-side along the width direction of the circuit board 300.

[0115] In some embodiments, the first lens assembly 400a is located above the laser chip, the second lens assembly 400b is located above the light receiving chip, the third lens assembly 400c is located above the laser chip, and the fourth lens assembly 400d is located above the light receiving chip.

[0116] In some embodiments, the side of the first DSP chip 320 is close to the end face of the first lens assembly 400a and the second lens assembly 400b; the side of the second DSP chip 330 is close to the end face of the third lens assembly 400c and the fourth lens assembly 400d.

[0117] Figure 6A Assembly of a lens assembly and an optical fiber assembly according to some embodiments Figure 1 , Figure 6B Assembly of a lens assembly and an optical fiber assembly according to some embodiments Figure 2 , Figure 6CAn assembly of a lens assembly and an optical fiber assembly according to some embodiments Figure 3 , Figure 6D This is an exploded view of a lens assembly and an optical fiber assembly according to some embodiments. Figures 6A-6D As shown, in some embodiments, the fiber optic assembly 500 includes a fiber optic connector 520. The fiber optic connector 520 connects to a fiber optic ribbon 510. The fiber optic connector 520 connects to a lens assembly 400, such that the fiber optic ribbon 510 is optically connected to the lens assembly 400. The lens assembly 400 can be bonded to the fiber optic connector 520 using adhesive.

[0118] In some embodiments, one end of the fiber optic connector 520 is located away from the lens assembly 400, and the other end of the fiber optic connector 520 has a mounting end face 521. The mounting end face 521 is used to mount and connect one end of the lens assembly 400.

[0119] In some embodiments, one end of the fiber optic ribbon 510 is connected to the fiber optic adapter 700, and the other end of the fiber optic ribbon 510 is connected to the fiber optic connector 520. Exemplarily, the end face of the other end of the fiber optic ribbon 510 protrudes from the mounting end face 521, which facilitates the optical connection of the fiber optic ribbon 510 to the lens assembly 400, thereby ensuring the optical coupling efficiency between the fiber optic ribbon 510 and the lens assembly 400.

[0120] In some embodiments, the fiber optic assembly 500 includes a fastener 530. The fastener 530 connects the fiber optic connector 520 and the lens assembly 400 to reinforce the connection between the fiber optic connector 520 and the lens assembly 400.

[0121] In some embodiments, the fastener 530 includes a first connecting plate 531, a bridging plate 532, and a second connecting plate 533. One end of the bridging plate 532 is connected to the first connecting plate 531, and the other end of the bridging plate 532 is connected to the second connecting plate 533. Exemplarily, one end of the bridging plate 532 is connected to the top end of the first connecting plate 531, and the other end of the bridging plate 532 is connected to the top end of the second connecting plate 533. The inner surfaces of the first connecting plate 531 and the second connecting plate 533 are disposed opposite to each other. One end of the fiber optic connector 520 is mounted on the inner surface of the first connecting plate 531, and the other end of the lens assembly 400 is mounted on the inner surface of the second connecting plate 533.

[0122] In some embodiments, the first connecting plate 531 is tilted toward the direction of the second connecting plate 533, and the second connecting plate 533 is tilted toward the direction of the first connecting plate 531, such that the distance between the top end of the first connecting plate 531 and the top end of the second connecting plate 533 is greater than the distance between the bottom end of the first connecting plate 531 and the bottom end of the second connecting plate 533, which facilitates the improvement of the fastening ability of the fastener 530, thereby strengthening the connection between the optical fiber connector 520 and the lens assembly 400.

[0123] In some embodiments, the bridging plate 532 covers the fiber optic connector 520 and the lens assembly 400. Exemplarily, the inner surface of the bridging plate 532 covers the fiber optic connector 520 and the lens assembly 400.

[0124] In some embodiments, a first clearance hole 534 is formed on the side of the bridging plate 532. The first clearance hole 534 is located above the connection between the fiber optic connector 520 and the lens assembly 400. When the fiber optic connector 520 and the lens assembly 400 are connected by adhesive, the first clearance hole 534 on the bridging plate 532 facilitates the application of adhesive at the connection between the fiber optic connector 520 and the lens assembly 400.

[0125] In some embodiments, a second clearance hole 535 is formed on the other side of the bridging plate 532. The second clearance hole 535 is located above the connection between the fiber optic connector 520 and the lens assembly 400. When the fiber optic connector 520 and the lens assembly 400 are connected by adhesive, the second clearance hole 535 on the bridging plate 532 facilitates the application of adhesive at the connection between the fiber optic connector 520 and the lens assembly 400.

[0126] Figure 7A Structure of a lens assembly according to some embodiments Figure 1 , Figure 7B Structure of a lens assembly according to some embodiments Figure 2 , Figure 7C Structure of a lens assembly according to some embodiments Figure 3 .like Figures 7A-7C As shown, in some embodiments, a first groove 410 is formed on the lens assembly 400, and a reflective surface 411 is formed within the first groove 410. The reflective surface 411 is used to reflect light signals to change the transmission direction of the light signals. The formation of the reflective surface 411 within the first groove 410 facilitates the shaping of the reflective surface 411, and the first groove 410 also protects the reflective surface 411 to ensure its reflective performance.

[0127] In some embodiments, the first groove 410 may be located on the side of the other end of the lens assembly 400, with the opening of the first groove 410 facing the side of the lens assembly 400, so as to form a recess on the end face of the other end of the lens assembly 400. Of course, in some embodiments, the first groove 410 may be located on the top of the lens assembly 400, with the opening of the first groove 410 facing upwards of the lens assembly 400.

[0128] In some embodiments, the length and width of the lens assembly 400 are no greater than 5 mm. The distance between the reflecting surface 411 and the other end face of the lens assembly 400 can be less than one-third of the length of the lens assembly 400, wherein the distance between the reflecting surface 411 and the other end face of the lens assembly 400 refers to the distance between the horizontal centerline of the reflecting surface 412 and the main end face of the right end of the lens assembly 400. For example, the distance between the reflecting surface 411 and the other end face of the lens assembly 400 can be less than 1 mm, or can be 0.5 mm, etc. Thus, the first groove 410 is formed at the end of the lens assembly 400, which facilitates reducing the size of the lens assembly 400.

[0129] In some existing optical module structures, when a laser chip is placed below the lens assembly body, a laser driver chip also needs to be placed below the lens assembly body. To match the laser chip and the laser driver chip, matching devices such as matching resistors also need to be placed below the lens assembly body, ensuring that the length and width of the lens assembly body are no less than 10mm. Furthermore, the laser driver chip is typically larger than the laser chip itself. To accommodate the relatively large laser driver chip and other devices below the lens assembly body, the reflecting surface on the lens assembly body must be located close to one end of the lens assembly body or at a position relatively central to the lens assembly body. That is, the distance between the reflecting surface and the other end of the lens assembly body is usually greater than half the length of the lens assembly body. Therefore, due to limitations in the development of laser chip and laser driver chip technology, the size of existing lens assembly bodies or lens assemblies cannot be made too small, or there can be significant variations in the 10mm × 10mm size.

[0130] In this embodiment of the present disclosure, the size of the laser chip and the laser driver chip can be made smaller, so that the reflecting surface 411 on the lens assembly 400 can be closer to the end face of the other end of the lens assembly 400, thereby making it possible to reduce the size of the lens assembly 400.

[0131] In some embodiments, the laser chip or light receiving chip may be located at the lower edge of the lens assembly 400, such that the first groove 410 may be formed on the side of the lens assembly 400.

[0132] In some embodiments, a first surface 420 is formed at the bottom of the lens assembly 400. The first surface 420 is located above the optical chip 310 and is used to transmit optical signals. For example, the first surface 420 is located above the laser chip, and the light generated by the laser chip is incident on the lens assembly 400 through the first surface, and the first surface 420 is used to couple the light generated by the laser chip into the lens assembly 400; or, the first surface 420 is located above the light receiving chip, and the optical signal to be received by the light receiving chip exits the lens assembly 400 through the first surface 420.

[0133] In some embodiments, the first surface 420 is an inclined surface, such that the normal of the first surface 420 is not parallel to the optical axis of the optical chip 310, which helps to reduce the re-entry of light signals reflected by the first surface 420 or the optical chip 310 into the optical path.

[0134] In some embodiments, an antireflective coating may be provided on the first surface 420 to improve the transmittance of the first surface 420.

[0135] In some embodiments, a first lens 421 is formed on the first surface 420. The first lens 421 can converge optical signals. For example, the first lens 421 can converge the optical signal generated by the laser chip to transmit the optical signal generated by the laser chip to the reflecting surface 411; or the first lens 421 can converge and transmit the optical signal to the optical receiving chip. Exemplarily, multiple first lenses 421 are provided on the first surface 420 to form a first lens array; for example, 4, 8, or 10 first lenses 421 are formed on the first surface 420. The focal point of the first lens 421 can be located on the laser chip and the optical receiving chip to ensure the coupling efficiency of the optical signal to the lens assembly 400 or the optical signal to the optical receiving chip.

[0136] In some embodiments, a first connecting portion 430 is formed at the bottom of the lens assembly 400. The first connecting portion 430 is located on one side of the first surface 420 and protrudes from the first surface 420. The first connecting portion 430 is used to connect the circuit board 300.

[0137] In some embodiments, a second connecting portion 440 is formed at the bottom of the lens assembly 400. The second connecting portion 440 is located on the other side of the first surface 420 and protrudes from the first surface 420. The second connecting portion 440 is used to connect the circuit board 300. The first connecting portion 430 and the second connecting portion 440 can form a receiving cavity with the circuit board 300 to avoid the light chip 310 below the first surface 420.

[0138] In some embodiments, a first reinforcing rib 431 is formed on the inner side surface of the first connecting portion 430. The first reinforcing rib 431 can increase the strength of the first connecting portion 430. Exemplarily, the top of the first reinforcing rib 431 extends to the first surface 420.

[0139] In some embodiments, a second reinforcing rib 441 is formed on the inner side surface of the second connecting portion 440. The second reinforcing rib 441 can increase the strength of the second connecting portion 440. Exemplarily, the top of the second reinforcing rib 441 extends to the first surface 420.

[0140] In some embodiments, a first avoidance angle 432 is formed at the end of the first connecting portion 430. The first avoidance angle 432 is located on one side of the first surface 420. The first avoidance angle 432 is used to avoid the optical chip 310, etc., so that the lens assembly 400 can be adapted to optical chips 310 of different sizes.

[0141] In some embodiments, the end of the second connecting portion 440 forms a second avoidance angle 442. The second avoidance angle 442 is located on the other side of the first surface 420. The second avoidance angle 442 is used to avoid the optical chip 310, etc., so that the lens assembly 400 can be adapted to optical chips 310 of different sizes.

[0142] In some embodiments, a second groove 450 is formed at one end of the lens assembly 400, and a second surface 451 is formed within the second groove 450. The second surface 451 faces the end face of the fiber optic strip 510 and is used to transmit optical signals. Exemplarily, an optical signal reflected by the reflective surface 411 is transmitted to the second surface 451, and the second surface 451 transmits the optical signal and couples it to the fiber optic strip 510; or, an optical signal output from the fiber optic strip 510 is transmitted to the second surface 451 and enters the lens assembly 400 via the second surface 451.

[0143] In some embodiments, a second lens 452 is formed on the second surface 451. The second lens 452 can converge optical signals. For example, the second lens 452 collimates the optical signal output from the fiber optic strip 510; or, the optical signal reflected by the reflecting surface 411 is converged and transmitted to the fiber optic strip 510 via the second lens 452. Exemplarily, a plurality of second lenses 452 are formed on the second surface 451 to form a second lens array; for example, 4, 8, or 10 second lenses 452 are formed on the second surface 451. The focal point of the second lens 452 can be located on the end face of the fiber optic strip 510, which facilitates ensuring the coupling efficiency of optical signal transmission between the fiber optic strip 510 and the lens assembly 400.

[0144] In some embodiments, an antireflective film may be provided on the second surface 451 to improve the transmittance of the second surface 451.

[0145] In some embodiments, the first connecting portion 430 and the second connecting portion 440 extend to the second groove 450, so that the first surface 420 and the second surface 451 are connected, which facilitates the forming of the lens assembly 400.

[0146] In some embodiments, a first positioning post 460 and a second positioning post 470 are formed at one end of the lens assembly 400. The first positioning post 460 and the second positioning post 470 are used for positioning and connecting the optical fiber connector 520. The central axis of the first positioning post 460 is located above the second groove 450, and the central axis of the second positioning post 470 is located above the second groove 450. This facilitates the positioning and connection of the lens assembly 400 to the optical fiber connector 520, and also helps to reduce the molding shrinkage of the lens assembly 400, thereby ensuring the molding accuracy of the lens assembly 400.

[0147] In some embodiments, the side of the first positioning post 460 forms a first notch 480, and the second positioning post 470 forms a second notch 490. The first notch 480 and the second notch 490 can be fitted with and connected to the optical fiber connector 520, which facilitates increasing the connection strength between the lens assembly 400 and the optical fiber connector 520.

[0148] In some embodiments, the first notch 480 may be located below the first clearance hole 534, and the second notch 490 may be located below the second clearance hole 535. The first notch 480 or the second notch 490 may be connected to the fiber optic connector 520 by adhesive.

[0149] In some embodiments, an avoidance groove 453 is formed on the edge of the second groove 450. The avoidance groove 453 is located on the second surface 451 and is used to facilitate the deposition of an antireflection film on the second surface 451.

[0150] Figure 8A The structure of an optical fiber connector according to some embodiments Figure 1 , Figure 8B The structure of an optical fiber connector according to some embodiments Figure 2 , Figure 8C This is a cross-sectional view of an optical fiber connector according to some embodiments. Figures 8A-8C As shown, in some embodiments, a third groove 522 is provided on the optical fiber connector 520. The third groove 522 is located at one end of the optical fiber connector 520 and is connected to the optical fiber ribbon 510.

[0151] In some embodiments, a through hole 523 is provided on the side of the other end of the optical fiber connector 520. The through hole 523 penetrates the mounting end face 521 and communicates with the third groove 522. The end of the optical fiber ribbon 510 is connected to the through hole 523. Exemplarily, the end of the optical fiber ribbon 510 may have its cladding removed, and the cladding-removed optical fiber ribbon is inserted into and extends out of the through hole 523.

[0152] In some embodiments, a third groove 522 is formed at the bottom of the fiber optic connector 520. A connecting groove 524 is provided within the third groove 522, and the connecting groove 524 connects to the fiber optic ribbon 510. The connecting groove 524 can limit the fiber optic ribbon 510, facilitating the connection of the fiber optic connector 520 to the fiber optic ribbon 510. Exemplarily, the connecting groove 524 can be used to connect the cladding of the fiber optic ribbon 510 with adhesive.

[0153] In some embodiments, the through hole 523 includes a fixing portion 5231 and an expansion portion 5232. One end of the expansion portion 5232 is close to the connecting groove 524, and the other end of the expansion portion 5232 is transitionally connected to one end of the fixing portion 5231. The inner diameter of the expansion portion 5232 is larger than the inner diameter of the fixing portion 5231. The expansion portion 5232 facilitates the insertion of the end of the optical fiber ribbon 510 into the through hole 523, and the fixing portion 5231 facilitates the connection of the optical fiber ribbon 510 to the through hole 523.

[0154] In some embodiments, a support platform 525 is provided in the third groove 522. The support platform 525 protrudes from the bottom surface of the third groove 522, and a connecting groove 524 is provided on the support platform 525 to reduce interference between the bottom surface of the third groove 522 and the connection between the fiber optic ribbon 510 and the fiber optic connector 520.

[0155] In some embodiments, the bottom of the fiber optic connector 520 is provided with a third connecting portion 526 and a fourth connecting portion 527. The third connecting portion 526 is located on one side of the third groove 522, and the fourth connecting portion 527 is located on the other side of the third groove 522. The third connecting portion 526 and the fourth connecting portion 527 are connected to the circuit board 300. The connection of the third connecting portion 526 and the fourth connecting portion 527 to the circuit board 300 can reduce the impact of the fiber optic connector 520 on the connection strength between the lens assembly 400 and the circuit board 300, and effectively reduce the damage caused by pulling the fiber optic ribbon 510 to the connection between the lens assembly 400 and the circuit board 300.

[0156] In some embodiments, a first positioning hole 5211 and a second positioning hole 5212 are formed on the assembly end face 521. The first positioning hole 5211 is used for positioning and connecting the first positioning post 460, and the second positioning hole 5212 is used for positioning and connecting the second positioning post 470.

[0157] In some embodiments, a first positioning groove 5213 is formed on the edge of the first positioning hole 5211, and a second positioning groove 5214 is formed on the edge of the second positioning hole 5212. The first positioning groove 5213 is used to avoid the first positioning post 460, so as to facilitate the positioning and connection of the first positioning post 460 to the first positioning hole 5211. The second positioning groove 5214 is used to avoid the second positioning post 470, so as to facilitate the positioning and connection of the second positioning post 470 to the second positioning hole 5212.

[0158] In some embodiments, the fiber optic connector 520 is provided with a first protrusion 528 and a second protrusion 529. The first protrusion 528 is assembled to a first notch 480, and the second protrusion 529 is assembled to a second notch 490, so as to facilitate the reinforcement of the connection between the lens assembly 400 and the fiber optic connector 520.

[0159] Figure 9A An assembly of an optical fiber connector and an optical fiber ribbon according to some embodiments. Figure 1 , Figure 9B An assembly of an optical fiber connector and an optical fiber ribbon according to some embodiments. Figure 2 , Figure 9C This is a cross-sectional view of an optical fiber connector and optical fiber ribbon according to some embodiments. Figures 9A-9C As shown, in some embodiments, the connecting groove 524 connects to the optical fiber ribbon 510, the end of the optical fiber ribbon 510 is not covered by a connecting through hole 523, and the end of the optical fiber ribbon 510 extends out of the through hole 523 and beyond the assembly end face 521.

[0160] In some embodiments, the fiber optic assembly 500 includes a cover plate 540. The cover plate 540 connects to the fiber optic ribbon 510 to reinforce the connection between the fiber optic connector 520 and the fiber optic ribbon 510, thereby reducing damage to the ends of the fiber optic ribbon 510 caused by bending.

[0161] In some embodiments, the bottom of the cover plate 540 covers the end of the fiber optic ribbon 510, and the sides of the cover plate 540 are connected to fiber optic connectors 520. Exemplarily, the bottom of the cover plate 540 is connected to the fiber optic ribbon 510 and the support platform 525 by adhesive.

[0162] In some embodiments, the top of the cover plate 540 is lower than the third connection portion 526 and the fourth connection portion 527, which helps to reduce the impact of the cover plate 540 on the fiber optic connector 520 connecting circuit board 300.

[0163] Figure 10 This is a usage diagram of an optical fiber connector and lens assembly according to some embodiments. Figure 11 This is a usage diagram of another fiber optic connector and lens assembly according to some embodiments. Figure 10 and Figure 11 Two different usage configurations of the fiber optic connectors and lens assemblies are shown, although in some embodiments the use of the fiber optic connectors and lens assemblies is not limited to these.

[0164] like Figure 10 and Figure 11 As shown, the end face of the fiber optic strip 510 is located within the second groove 450, which facilitates the control of the distance between the end face of the fiber optic strip 510 and the second surface 451, and makes it easier to position the end face of the fiber optic strip 510 at the focal point of the second lens 452.

[0165] The mounting end face 521 of the fiber optic connector 520 abuts against one end of the lens assembly 400, the inner side of the first connecting plate 531 abuts against one end of the fiber optic connector 520, the inner side of the second connecting plate 533 abuts against the other end of the lens assembly 400, and the fastener 530 connects the fiber optic connector 520 and the lens assembly 400.

[0166] like Figure 10 As shown, in some embodiments, the laser chip generates an optical signal that is transmitted to the first lens 421, collimated by the first lens 421, transmitted to the reflecting surface 411, reflected by the reflecting surface 411, transmitted to the second lens 452, converged by the second lens 452, transmitted to the end face of the fiber optic strip 510, coupled to the fiber optic strip 510, and transmitted to the fiber optic adapter 700 via the fiber optic strip 510.

[0167] like Figure 11 As shown, in some embodiments, the optical signal transmitted by the optical fiber 101 is coupled to the optical fiber strip 510 by the optical fiber adapter 700, transmitted through the optical fiber strip 510 to the end face of the optical fiber strip 510, transmitted through the end face of the optical fiber strip 510 to the second lens 452, collimated by the second lens 452 and transmitted to the reflecting surface 411, reflected by the reflecting surface 411 and transmitted to the first lens 421, and converged by the first lens 421 and transmitted to the optical receiving chip.

[0168] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure, and are not intended to limit them. Although this disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this disclosure.

Claims

1. An optical module characterized by comprising: include: A circuit board is provided with an optical chip; the optical chip is electrically connected to the circuit board, and the optical chip generates or receives optical signals; The fiber optic adapter is located at the optical port of the optical module; The lens assembly has a first surface, a first connecting portion, and a second connecting portion formed at its bottom. A second groove is formed at one end, and a first groove is formed at the other end. The first connecting portion is located on one side of the first surface, and the second connecting portion is located on the other side of the first surface. The first connecting portion and the second connecting portion are connected to the circuit board. The first surface is located above the optical chip. A reflective surface is formed in the first groove, and the reflective surface is located above the first surface. A second surface is formed in the second groove. Fiber optic components, including: The fiber optic connector has a third groove at the bottom and an assembly end face at the end; a through hole is formed on the side wall of the third groove, the through hole penetrates the assembly end face, and the assembly end face is connected to the lens assembly. The fiber optic ribbon has one end connected to the fiber optic adapter, the other end connected to the third groove, and the end connected to the through hole. Fasteners that connect the optical fiber connector and the lens assembly.

2. The optical module according to claim 1, characterized by The optical fiber assembly also includes a cover plate, the bottom of which is connected to the optical fiber strip, and the sides of which are connected to the optical fiber connectors.

3. The optical module according to claim 1, characterized by A support platform is provided in the third groove, and a connecting groove is formed on the support platform to connect the optical fiber strip.

4. The optical module according to claim 1, characterized by A first positioning hole and a second positioning hole are provided on the assembly end face. A first protrusion is formed on the side of the first positioning hole, and a second protrusion is formed on the side of the second positioning hole. One end of the lens assembly is formed with a first positioning post and a second positioning post, the side of the first positioning post is formed with a first notch, and the side of the second positioning post is formed with a second notch. The first positioning hole is positioned and connected to the first positioning post, the second positioning hole is positioned and connected to the second positioning post, the first protrusion is connected to the first notch, and the second protrusion is connected to the second notch.

5. The optical module of claim 1, wherein, A first lens is formed on the first surface, and a second lens is formed on the second surface; the focal point of the first lens is located on the optical chip, and the focal point of the second lens is located on the end face of the optical fiber.

6. The optical module of claim 1, wherein, The fastener includes a first connecting plate, a bridging plate, and a second connecting plate; one end of the bridging plate is connected to the top of the first connecting plate, and the other end of the bridging plate is connected to the top of the second connecting plate. One end of the optical fiber connector is assembled and connected to the inner side of the first connecting plate, and the lens assembly is assembled and connected to the inner side of the second connecting plate.

7. The optical module according to claim 6, characterized by A first clearance hole is formed on one side of the bridging plate, and a second clearance hole is formed on the other side of the bridging plate; the first clearance hole and the second clearance hole are located above the assembly end face.

8. The optical module of claim 1, wherein, A first reinforcing rib is formed on the first connecting portion, and a second reinforcing rib is formed on the second connecting portion; the first reinforcing rib and the second reinforcing rib extend to the first surface; The first connecting portion has a first avoidance angle at its end, and the second connecting portion has a second avoidance angle at its end, with the first avoidance angle and the second avoidance angle avoiding the optical chip.

9. An optical module characterized by comprising: include: The circuit board is equipped with a laser chip array; The laser chip array is electrically connected to the circuit board, and the laser chip array generates optical signals; The fiber optic adapter is located at the optical port of the optical module; A lens assembly has a first surface formed at its bottom, a second groove formed at one end, and a first groove formed at the other end; the bottom of the lens assembly is connected to the circuit board, such that the first surface is located above the laser chip array; a reflective surface is formed in the first groove, and the reflective surface is located above the first surface, and a first lens is formed on the first surface; a second surface is formed in the second groove, and a second lens is formed on the second surface; Fiber optic components, including: The fiber optic connector has a third groove at the bottom and an assembly end face at the end; a through hole is formed on the side wall of the third groove, the through hole penetrates the assembly end face, and the assembly end face is connected to the lens assembly. The fiber optic ribbon has one end connected to the fiber optic adapter, the other end connected to the third groove, and the end face connected to the through hole; the end face of the fiber optic ribbon is located in the second groove. Fasteners that connect the optical fiber connector and the lens assembly.

10. An optical module characterized by comprising: include: The circuit board is equipped with an array of optical receiving chips. The optical receiver chip array is electrically connected to the circuit board, and the optical receiver chip receives optical signals; The fiber optic adapter is located at the optical port of the optical module; A lens assembly has a first surface formed at its bottom, a second groove at one end, and a first groove at the other end; the bottom of the lens assembly is connected to the circuit board, such that the first surface is located above the light receiving chip array; a reflective surface is formed in the first groove, and the reflective surface is located above the first surface, and a first lens is formed on the first surface; a second surface is formed in the second groove, and a second lens is formed on the second surface. Fiber optic components, including: The fiber optic connector has a third groove at the bottom and an assembly end face at the end; a through hole is formed on the side wall of the third groove, the through hole penetrates the assembly end face, and the assembly end face is connected to the lens assembly. The fiber optic ribbon has one end connected to the fiber optic adapter, the other end connected to the third groove, and the end face connected to the through hole; the end face of the fiber optic ribbon is located in the second groove. Fasteners that connect the optical fiber connector and the lens assembly.

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