Optical module comprising non-linear heat dissipation fins
By employing a nonlinear fin design in the optical module to form alternating wide and narrow flow channels, the problem of insufficient heat dissipation in existing optical modules is solved, achieving higher heat dissipation efficiency and fluid flow rate, thus meeting the needs of high-speed optical communication.
Patent Information
- Application Number
- CN202410544778.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-06
- Publication Date
- 2025-11-07
AI Technical Summary
Existing optical modules face challenges in terms of optical efficiency, space management, thermal management, and manufacturing yield, especially in terms of insufficient heat dissipation capacity, which cannot meet the needs of high-speed optical communication.
The non-linear fin design features fins that extend longitudinally along the shell and are arranged laterally to form alternating wide and narrow flow channels, which increases the flow rate of the working fluid and the contact area, thereby improving heat dissipation efficiency.
The fluid flow rate is increased by about 50%, and the heat dissipation capacity is significantly enhanced, meeting the heat dissipation requirements of high-speed optical communication.
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Figure CN120908945A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to an optical module, in particular, an optical module comprising nonlinear heat dissipation fins. BACKGROUND
[0002] Optical modules can transmit and / or receive optical signals for applications such as, but not limited to, data centers, cable TV, and fiber to the home (FTTH). Using optical modules to transmit can provide higher transmission rates and signal bandwidths over longer transmission distances. To promote compatibility of global optical internet products and reduce maintenance burdens, organizations such as Multi-Source Agreement (MSA), Institute of Electrical and Electronics Engineers (IEEE), and Optical Internetworking Forum (OIF) have developed several form factors suitable for different signal transmission rates. These form factors include, but are not limited to, XFP, SFP, QSFP (Quad Small Form Factor Pluggable), QSFP-DD (Double Density), OSFP (Octal Small Form Factor Pluggable), and CPO (Co-Packaged Optics).
[0003] Existing optical modules face challenges in optical efficiency (power), space management, thermal management, insertion loss, and manufacturing yield. SUMMARY
[0004] The present application provides an optical module to help solve the problems of existing optical modules.
[0005] The disclosed optical module comprises a housing and a heat dissipation structure. The heat dissipation structure is located on the outer surface of the housing, and comprises a plurality of nonlinear fins. Each of the nonlinear fins extends in the longitudinal direction of the housing, and the nonlinear fins are arranged along the transverse direction of the housing. Among them, two adjacent nonlinear fins form a flow channel together, and the shapes of the two adjacent nonlinear fins are substantially linearly symmetric with respect to the longitudinal axis of the housing.
[0006] The application also discloses a light module. The light module comprises a housing and a heat dissipation structure. The heat dissipation structure is located on the outer surface of the housing. The heat dissipation structure comprises a plurality of non-linear fins. Adjacent two of the non-linear fins jointly form a flow channel. Each of the non-linear fins comprises a plurality of linear sections and a plurality of non-linear sections. The non-linear sections jointly form a plurality of wide sections of the flow channel. The linear sections jointly form a plurality of narrow sections of the flow channel. The linear sections of each of the non-linear fins comprise a first end linear section and a plurality of intermediate linear sections. The intermediate linear sections are arranged alternately with the non-linear sections. The length of the first end linear section is greater than the length of each of the intermediate linear sections.
[0007] According to the light module of the application, when the working fluid such as cold air flows from the light interface end to the electrical interface end of the light module, the flow rate (the displacement amount per unit time) of the working fluid flowing through the narrow sections can be improved, so that the working fluid flowing to the electrical interface end has a higher flow rate. Compared with the existing flat heat dissipation fins, the flow rate of the working fluid flowing to the electrical interface end can be improved by about 50%. In addition, the wide sections help to increase the contact area of the working fluid and the non-linear fins. Therefore, the flow channel formed by the non-linear fins and comprising the wide sections and the narrow sections with different widths helps to improve the heat dissipation capacity of the heat dissipation structure.
[0008] The above description of the application and the following description of the embodiments are used to demonstrate and explain the spirit and principles of the application, and provide further explanation for the protection scope of the application. BRIEF DESCRIPTION OF DRAWINGS
[0009] Figure 1 A block diagram of a light module according to an embodiment of the application.
[0010] Figure 2 A block diagram of a light module according to another embodiment of the application.
[0011] Figure 3 A perspective view of a light module according to another embodiment of the application.
[0012] Figure 4 A top view of a light module according to the application. Figure 3
[0013] A partial enlarged view of a light module according to the application. Figure 5 Figure 4 A sectional view of a light module according to the application.
[0014] Figure 6 Figure 3 A top view of a light module according to another embodiment of the application.
[0015] Figure 7 A top view of a light module according to another embodiment of the application.
[0016] Figure 8 A top view schematic diagram of a light module according to yet another embodiment of the present application.
[0017]
Explanation of Reference Signs
[0018] 100, 100a, 200, 200a, 200b: light module
[0019] 110, 210: housing
[0020] 120: substrate
[0021] 121, 122: conductive line
[0022] 130, 130a: light emitting sub-module
[0023] 131: light emitting unit
[0024] 132: multiplexing unit
[0025] 140, 140a: light receiving sub-module
[0026] 141: demultiplexing unit
[0027] 142: light receiving unit
[0028] 143: amplifier
[0029] 144: fiber array
[0030] 151, 152, 153: fiber joint
[0031] 160: transmitting connection circuit
[0032] 170: receiving connection circuit
[0033] 220, 220a, 220b: heat dissipation structure
[0034] 221, 221a, 221b: nonlinear fin
[0035] 222, 222a, 222b: linear part
[0036] 223, 223a, 223b: nonlinear part
[0037] 224: linear segment
[0038] D1: longitudinal direction
[0039] D2: transverse direction
[0040] EI: electrical interface
[0041] EIP: electrical interface end
[0042] EL1: first end linear portion
[0043] EL2: second end linear portion
[0044] FC: flow channel
[0045] HS: heat source
[0046] IL, ILa: intermediate linear portion
[0047] LA: longitudinal axis
[0048] NS, NSb: narrow section
[0049] OI: optical interface
[0050] OIP: optical interface port
[0051] RX_D1, RX_D2, RX_D3, RX_D4: electrical signal
[0052] TX_D1, TX_D2, TX_D3, TX_D4: driving signal
[0053] WS, WSa, WSb: wide section DETAILED DESCRIPTION
[0054] The detailed features and advantages of the present application are described in detail in the embodiments below, which are sufficient to enable a person of ordinary skill in the art to understand the technical content of the present application and implement it, and according to the content, protection scope and drawings disclosed in the present specification, a person of ordinary skill in the art can easily understand the related purposes and advantages of the present application. The following examples further illustrate the concepts of the present application, but do not limit the scope of the present application in any way.
[0055] The heat management of the optical module mainly involves transferring the heat generated by the elements to the housing for heat dissipation. As the demand for high-speed optical communication increases, the power consumption of the optical module also increases, thereby requiring higher heat dissipation efficiency. Providing or forming heat dissipation fins on the housing of the optical module is one of the solutions to improve the heat dissipation efficiency. However, the existing heat dissipation fins are linearly extended flat fins, and their heat dissipation capacity cannot meet the future demand.
[0056] According to an embodiment of the present application, when the working fluid such as cold air flows from the optical interface port to the electrical interface port of the optical module, the flow rate (the displacement amount per unit time of the fluid) of the working fluid flowing through the narrow section can be increased, so that the working fluid flowing to the electrical interface port has a higher flow rate. Compared with the existing flat heat dissipation fins, the flow rate of the working fluid flowing to the electrical interface port can be increased by about 50%. In addition, the wide section helps to increase the contact area of the working fluid and the nonlinear fin. Therefore, the flow channel formed by the nonlinear fin and comprising the wide sections and the narrow sections with different widths helps to improve the heat dissipation capacity of the heat dissipation structure.
[0057] One or more embodiments of the present disclosure disclose some or all of the technical features in combination to achieve corresponding effects.
[0058] The terms "coupled" or "coupling" refer to any connection, link, or similar relationship, and "optically coupled" or "optically coupling" refers to a relationship in which light is imparted from one object to another. Objects that are "coupled" or "coupled" to one another need not be directly connected to one another and can be separated by intermediate objects unless otherwise stated.
[0059] The term "substantially" is used herein to mean to an acceptable degree of exactness, within acceptable tolerances and / or accounting for minor real-world variations resulting from material composition, material imperfections, and / or limitations / peculiarities in the manufacturing process. Such variations can therefore be described as achieving the stated characteristic to a large extent, but not necessarily perfectly.
[0060] The term "channel wavelength" refers to a wavelength associated with an optical channel and can include a specific band of wavelengths around a center wavelength. More specifically, the channel wavelength can be defined by International Telecommunication Union (ITU) standards, such as the ITU-T high-density wavelength division multiplexing (DWDM) grid or low-density wavelength division multiplexing (CWDM). In one embodiment, the channel wavelength is implemented according to a Local area network (LAN) wavelength division multiplexing (WDM), which can also be referred to as LWDM.
[0061] Referring to Figure 1 FIG. 1 is a block diagram of an optical module according to an embodiment of the present disclosure. The optical module 100 can include a plurality of elements disposed within a housing 110. Further, the optical module 100 can be understood as an optical transceiver or an optical subassembly, and the housing 110 can be understood as a hermetic package or a non-hermetic package. Figure 1An exemplary optical module 100 as an optical transceiver can include a substrate 120 disposed within a housing 110. In addition, the optical module 100 can also include a transmitter optical subassembly (TOSA) 130 and a receiver optical subassembly (ROSA) 140 coupled to the substrate 120. In other embodiments where the optical module 100 is an optical subassembly, the optical module 100 can include one of a receiver optical subassembly and a transmitter optical subassembly.
[0062] The substrate 120 can be understood as a printed circuit board assembly (PCBA). One end of the substrate 120 can extend from the housing 110 to an exterior to allow electrical interconnection of the optical module 100 with external circuitry. The transmitter optical subassembly 130 and the receiver optical subassembly 140 can be used to transmit and receive signals of multiple channel wavelengths, respectively. Specifically, the transmitter optical subassembly 130 can transmit optical signals of four different channel wavelengths, and the receiver optical subassembly 140 can receive optical signals of four different channel wavelengths (λ1, λ2, λ3, λ4).
[0063] The transmitter optical subassembly 130 can include a light emitting unit 131 and a multiplexing unit 132. The light emitting unit 131 can be understood as one or more laser diodes. The multiplexing unit 132 can include an arrayed waveguide grating (AWG) or any suitable element for combining multiple channel wavelengths for output. The multiplexing unit 132 can be optically coupled to the light emitting unit 131 to receive optical signals emitted by the light emitting unit 131. The multiplexing unit 132 can also be optically coupled to a fiber optic splice 151. The fiber optic splice 151 can be understood as an LC splice. The transmitter optical subassembly 130 can also include passive and / or active optical elements such as, but not limited to, at least one of an optical isolator, an optical modulator, a focusing lens, and a monitor photodiode.
[0064] The receiver optical subassembly 140 can include a demultiplexing unit 141, a light receiving unit 142, and an amplifier 143. The demultiplexing unit 141 can be understood as an arrayed waveguide grating, the light receiving unit 142 can be understood as one or more photodiodes, and the amplifier 143 can be understood as a transimpedance amplifier (TIA). The demultiplexing unit 141 can be optically coupled to a fiber optic splice 152. The fiber optic splice 152 can be understood as an LC splice. The demultiplexing unit 141 can be used to divide optical signals into multiple channel wavelengths for output to the light receiving unit 142.
[0065] The optical module 100 can further include a transmitting connection circuit 160 (may also be referred to as TX circuit) electrically connected with the optical transmitting sub-module 130 and a receiving connection circuit 170 (may also be referred to as RX circuit) electrically connected with the optical receiving sub-module 140. The transmitting connection circuit 160 can drive the optical transmitting unit 131 of the optical transmitting sub-module 130. Further, the substrate 120 can have a conductive line 121 electrically connecting the transmitting connection circuit 160 with the optical transmitting unit 131. The transmitting connection circuit 160 can receive a driving signal (e.g., driving signals TX_D1 to TX_D4 in FIG. 1) from an external circuit. The optical transmitting unit 131 can emit an optical signal of a specific channel wavelength according to the driving signal. In addition, the substrate 120 can also have a conductive line 122 electrically connecting the receiving connection circuit 170 with the amplifier 143. The optical receiving unit 142 can convert the optical signal into an electrical signal and output the electrical signal to the amplifier 143, so that the electrical signal can be amplified and / or modulated. Then, the electrical signal can be output as, for example, electrical signals RX_D1 to RX_D4 in FIG. 1 through the receiving connection circuit 170. Figure 1 Figure 1
[0066] The transmitting connection circuit 160 and the receiving connection circuit 170 can each be understood as a circuit board pin. In some embodiments, the optical transmitting sub-module 130 or the optical receiving sub-module 140 can be hermetically packaged. In this case, the transmitting connection circuit 160 or the receiving connection circuit 170 can be understood as a feedthrough, more specifically as a ceramic circuit board or a flexible circuit board.
[0067] Figure 2 A block diagram of an optical module according to another embodiment of the present application is shown. The optical module 100a has a similar architecture as the optical module 100, except that the optical module 100a can include an optical transmitting sub-module 130a without a multiplexing unit and an optical receiving sub-module 140a without a demultiplexing unit. The optical transmitting sub-module 130a and the optical receiving sub-module 140a can each be optically coupled with the fiber joint 153. The fiber joint 153 can be understood as an MPO (Multi-fiber push on) joint or an active optical cable (AOC). In addition, the optical receiving sub-module 140a can include a fiber array 144 optically coupled with the fiber joint 153. The optical receiving unit 142 of the optical receiving sub-module 140a can receive an optical signal through the fiber array 144.
[0068] Figure 1 Figure 2 The optical module is exemplarily shown to transmit and receive optical signals of four different channel wavelengths through the optical transmitting sub-module and the optical receiving sub-module, respectively, so as to achieve a signal transmission rate of, for example, at least 400 Gbps, but the number of channels and the signal transmission rate are not intended to limit the present application.
[0069] The optical module may include a heat dissipation structure. Please refer to [reference needed]. Figures 3 to 6 ,in Figure 3 This is a three-dimensional schematic diagram of an optical module according to another embodiment of the present invention. Figure 4 for Figure 3 A top-view diagram of the optical module. Figure 5 for Figure 4 A partially enlarged schematic diagram of the optical module, and Figure 6 for Figure 3 A cross-sectional schematic diagram of the optical module. In this embodiment, the optical module 200 may include a housing 210 and a heat dissipation structure 220.
[0070] The housing 210 can be a single housing, or it can be a multi-part housing comprising an upper housing and a lower housing. The housing 210 can be understood as... Figure 1 or Figure 2 The housing 110 in the middle, and the outer surface of the housing 210 can be understood as the top surface or bottom surface of the housing 210. The housing 210 can accommodate, for example Figure 1 or Figure 2 The substrate 120, the light emitting sub-module 130, and the light receiving sub-module 140 are included.
[0071] The heat dissipation structure 220 may be located on the outer surface of the housing 210, and the heat dissipation structure 220 may include multiple nonlinear fins 221. Each nonlinear fin 221 may extend in the longitudinal direction D1 of the housing 210, and the nonlinear fins 221 may be arranged along the transverse direction D2 of the housing 210. Based on appearance improvement or dimensional specifications, the top of the nonlinear fins 221 may be covered by a cover plate (not shown separately).
[0072] Here, the term "nonlinear fin" can refer to a fin that at least a portion does not extend along the longitudinal direction D1 of the housing 210. More specifically, the nonlinear fin 221 may extend from one end of the housing 210 to the other end, wherein the two ends may respectively have an optical interface OI and an electrical interface EI of the optical module 200. The optical interface OI can be understood as... Figure 1 Fiber optic connectors 151, 152 or Figure 2 The fiber optic connector 153 in the text, and the electrical interface EI can be understood as... Figure 1 or Figure 2 The transmitting connection circuit 160 or receiving connection circuit 170 is included. The nonlinear fin 221 can be fixed to the outer surface of the housing 210, or the housing 210 and the nonlinear fin 221 can be integrally formed into a single piece.
[0073] In the transverse direction D2 of the housing 210, two adjacent nonlinear fins 221 can jointly form a flow channel FC. In addition, the shapes of the two adjacent nonlinear fins 221 can be substantially linearly symmetrical with respect to the longitudinal axis LA of the housing 210. Further, each nonlinear fin 221 can include a plurality of linear portions 222 and a plurality of nonlinear portions 223. The linear portions 222 and the nonlinear portions 223 can be connected to each other. For the two adjacent nonlinear fins 221, the linear portions 222 can be symmetrically arranged with respect to the longitudinal axis LA, and the nonlinear portions 223 can also be symmetrically arranged with respect to the longitudinal axis LA.
[0074] The linear portions 222 and the nonlinear portions 223 can be alternately arranged to form a plurality of wide sections WS and a plurality of narrow sections NS of the flow channel FC. Further, for the two adjacent nonlinear fins 221, the nonlinear portions 223 can jointly form the wide sections WS, and the linear portions 222 can jointly form the narrow sections NS. Figure 4 and Figure 5 Exemplarily, the linear portions 222 extending along the longitudinal direction D1 of the housing 210 form straight narrow sections NS, and the nonlinear portions 223 include wide sections WS substantially in the shape of polygons formed by linear sections 224 in different directions, but the present application is not limited thereto. In other embodiments, the nonlinear portions 223 can be jagged, circular-arc, or wavy from a top view or a bottom view. Figure 5 Exemplarily, each nonlinear portion 223 includes three linear sections 224, two of which have extending directions substantially intersecting the longitudinal axis LA, and the other one of which has an extending direction substantially parallel to the longitudinal axis LA.
[0075] The linear portions 222 of each nonlinear fin 221 can include a first end linear portion EL1 and a plurality of intermediate linear portions IL. The intermediate linear portions IL can be alternately arranged with the nonlinear portions 223. Further, for the two adjacent nonlinear fins 221, the intermediate linear portions IL and the nonlinear portions 223 can be alternately arranged, and the intermediate linear portions IL can jointly form the narrow sections NS of the flow channel FC. The first end linear portion EL1 can be closer to the electrical interface EI of the optical module 200 than the intermediate linear portions IL.
[0076] The linear portions 222 of each nonlinear fin 221 can further include a second end linear portion EL2. The second end linear portion EL2 can be closer to the optical interface OI of the optical module 200 than the intermediate linear portions IL and the first end linear portion EL1. That is, the first end linear portion EL1 and the second end linear portion EL2 can be adjacent to opposite ends of the optical module 200, respectively, and the intermediate linear portions IL and the nonlinear portions 223 can be between the first end linear portion EL1 and the second end linear portion EL2.
[0077] Please refer toFigure 4 and Figure 5 When the working fluid, such as cold air, flows from the optical interface end OIP to the electrical interface end EIP of the optical module 200, the flow rate (the amount of displacement per unit of time) of the working fluid flowing through the narrow sections NS can be increased, so that the working fluid flowing to the electrical interface end EIP has a higher flow rate. Compared to the existing flat plate-shaped heat dissipation fins, the flow rate of the working fluid flowing to the electrical interface end EIP can be increased by, for example but not limited to, about 50%. In addition, the wide sections WS help to increase the contact area between the working fluid and the nonlinear fins 221. Therefore, the flow channel FC formed by the nonlinear fins 221 including the wide sections WS and the narrow sections NS of different widths helps to increase the heat dissipation capacity of the heat dissipation structure 220.
[0078] Without affecting the size of the optical module 200, the length of at least one of the first end linear portion EL1 and the second end linear portion EL2 can be increased as much as possible, so that the flow rate of the working fluid can be increased to the greatest extent. Further, the length of the first end linear portion EL1 can be greater than the length of each intermediate linear portion IL, and the length of the second end linear portion EL2 can be greater than the length of each intermediate linear portion IL.
[0079] Please refer to Figure 6 The first end linear portion EL1 of each nonlinear fin 221 can correspond to at least one of a transimpedance amplifier (TIA), a digital signal processor (DSP), a laser diode (LD), and a laser driver (LDD) of the optical module 200. Further, the first end linear portion EL1 can be configured to correspond to one or more high-power active elements regarded as heat sources HS. Specifically, in the case of, for example, an eight-channel small form-factor pluggable (OSFP) optical module, the high-power active elements are close to the electrical interface of the optical module, resulting in a significantly higher temperature of the electrical interface. In this case, configuring the first end linear portion EL1 close to the electrical interface end EIP helps to optimize the heat dissipation capacity of the heat dissipation structure 220.
[0080] Figure 7 is a top view schematic diagram of an optical module according to another embodiment of the present application. In the present embodiment, the heat dissipation structure 220a of the optical module 200a can include nonlinear fins 221a. The nonlinear fins 221a can include linear portions 222a and nonlinear portions 223a, and the linear portions 222a can include a first end linear portion EL1, a second end linear portion EL2, and an intermediate linear portion ILa. Each nonlinear portion 223a of the nonlinear fins 221a can be substantially arc-shaped. Figure 7 An exemplary nonlinear portion 223a formed by an arc line is shown, and the arc-shaped nonlinear portion 223a forms a wide section WSa that is substantially elliptical.
[0081] Figure 8FIG. 20B is a top view of a light module according to yet another embodiment of the present application. In this embodiment, the heat dissipation structure 220b of the light module 200b can include a nonlinear fin 221b. The nonlinear fin 221b can include linear portions 222b and nonlinear portions 223b, and the nonlinear fin 221b can include only end linear portions without intermediate linear portions. In detail, the linear portions 222b of the nonlinear fin 221b can include only a first end linear portion EL1 and a second end linear portion EL2. Further, the nonlinear portions 223b of the nonlinear fin 221b are directly connected to form a wide section WSb in a substantially circular shape and a narrow section NSb in a substantially hourglass shape.
[0082] The embodiments of the present application are disclosed as above, but are not intended to limit the present application. The shape, configuration, feature and spirit described in the scope of the present application can be changed by those skilled in the art without departing from the spirit and scope of the present application.
Claims
1. An optical module, characterized by comprising: A housing; and A heat dissipation structure located on an outer surface of the housing, the heat dissipation structure comprising a plurality of non-linear fins, each of the plurality of non-linear fins extending in a longitudinal direction of the housing, and the plurality of non-linear fins being arranged along a transverse direction of the housing; Wherein, two adjacent ones of the plurality of non-linear fins collectively form a flow channel, and shapes of the two adjacent ones of the plurality of non-linear fins are substantially linearly symmetrical with respect to a longitudinal axis of the housing. Each of the plurality of non-linear fins comprises a terminal linear portion and a plurality of non-linear portions, and the terminal linear portion is closer to an electrical interface of the optical module than the plurality of non-linear portions.
2. The optical module of claim 1, wherein, The flow channel has a plurality of wide sections and a plurality of narrow sections arranged alternately.
3. The optical module of claim 1, wherein the optical module is configured to be mounted on a circuit board. Each of the plurality of non-linear fins comprises a plurality of linear portions and a plurality of non-linear portions arranged alternately, the plurality of non-linear portions of two adjacent ones of the plurality of non-linear fins collectively form the plurality of wide sections, and the plurality of linear portions of the two adjacent ones of the plurality of non-linear fins collectively form the plurality of narrow sections.
4. The optical module of claim 3, wherein the optical module is configured to be mounted on a circuit board. The plurality of linear portions of each of the plurality of non-linear fins comprises a first terminal linear portion and a plurality of intermediate linear portions, the first terminal linear portion is closer to an electrical interface of the optical module than the plurality of intermediate linear portions, the plurality of intermediate linear portions and the plurality of non-linear portions are arranged alternately, the plurality of intermediate linear portions of two adjacent ones of the plurality of non-linear fins collectively form the plurality of narrow sections, and a length of the first terminal linear portion is greater than a length of each of the plurality of intermediate linear portions.
5. The optical module of claim 4, wherein the optical module is configured to be mounted on a circuit board. The plurality of linear portions of each of the plurality of non-linear fins further comprises a second terminal linear portion, the second terminal linear portion is closer to an optical interface of the optical module than the plurality of intermediate linear portions and the first terminal linear portion, and a length of the second terminal linear portion is greater than the length of each of the plurality of intermediate linear portions.
6. The optical module of claim 5, wherein the optical module is configured to be mounted on a circuit board. The first terminal linear portion corresponds to at least one of a transimpedance amplifier, a digital signal processor, a laser diode, and a laser driver of the optical module.
7. The optical module of claim 5, wherein the optical module is configured to be mounted on a circuit board. Each of the plurality of non-linear portions is formed by linear sections in different directions.
8. The optical module of claim 4, wherein the optical module is configured to be mounted on a circuit board. The optical module is an eight-channel small form-factor pluggable optical module.
9. The optical module of claim 1, wherein, A housing; and 10. An optical module, characterized by comprising: A heat dissipation structure located on an outer surface of the housing, the heat dissipation structure comprising a plurality of non-linear fins, two adjacent ones of the plurality of non-linear fins collectively form a flow channel, each of the plurality of non-linear fins comprises a plurality of linear portions and a plurality of non-linear portions, the plurality of non-linear portions collectively form a plurality of wide sections of the flow channel, and the plurality of linear portions collectively form a plurality of narrow sections of the flow channel; Wherein, the plurality of linear portions of each of the plurality of non-linear fins comprises a first terminal linear portion and a plurality of intermediate linear portions, the plurality of intermediate linear portions and the plurality of non-linear portions are arranged alternately, and a length of the first terminal linear portion is greater than a length of each of the plurality of intermediate linear portions. The first terminal linear portion is closer to an electrical interface of the optical module than the plurality of intermediate linear portions. The plurality of linear portions of each of the plurality of non-linear fins further comprises a second terminal linear portion, the second terminal linear portion is closer to an optical interface of the optical module than the plurality of intermediate linear portions and the first terminal linear portion, and a length of the second terminal linear portion is greater than the length of each of the plurality of intermediate linear portions.
11. The optical module of claim 10, wherein the optical module is configured to be mounted on a circuit board. 12. The optical module of claim 11, wherein the optical module is configured to be mounted on a printed circuit board (PCB) of a host device. 13. The optical module of claim 10, wherein the optical module is configured to be mounted on a printed circuit board (PCB) of a host device. The plurality of nonlinear sections are formed by linear segments of different directions.
14. The optical module of claim 10, wherein the optical module is configured to be mounted on a circuit board. The first end linear section corresponds to at least one of a transimpedance amplifier, a digital signal processor, a laser diode, and a laser driver of the optical module.
15. The optical module of claim 10, wherein the optical module is configured to be mounted on a printed circuit board (PCB) of a host device. The optical module is an eight-channel small form-factor pluggable optical module.