Optical module connection structure, SR optical module and AOC optical module

Abstract

The utility model relates to an optical module connection structure, an SR optical module and an AOC optical module, the optical module connection structure comprises a PCBA board, a PEI Lens, an MT connector and a Jumper connector, the PEI Lens is arranged on the PCBA board, the PEI Lens interface is provided with a dispensing groove, and two sides of the PEI Lens interface are provided with bayonets; the PEI Lens and the MT connector form a first optical module, one end of the MT connector is connected with the PEI Lens, and the MT connector is embedded in the dispensing groove; the PEI Lens and the Jump connector form a first optical module, the PEI Lens and the Jump connector form a second optical module, the Jump connector is connected with the PEI Lens, one end, connected with the PEI Lens, of the Jump connector is provided with a buckle, and the buckle is matched with the bayonet. According to the utility model, the SR optical module and the AOC optical module share the PEI Lens, and the tedious switching process is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to optical communication technical field especially is a kind of optical module connection structure and SR optical module, AOC optical module. BACKGROUND

[0002] With the rapid development of network information and the rapid deployment of AI big data, the demand for communication bandwidth of communication system is rapidly increasing, and the control of cost and power consumption is increasingly strict, and the development of traditional optical module cannot fully meet the communication needs, from the 10G, 40G, 100G of the past to the 400G, 800G high-speed optical module of today, the development is very rapid.

[0003] Considering the needs of data center and other markets, optical modules are mainly required for transmission distances such as SR, DR and FR, among which 400G DR4, 800G DR8, 400G FR4 and 400G FR8 are used as examples, and module manufacturers usually use EML laser, silicon optical chip modulator, thin film lithium niobate chip modulator and DSP electric chip, while 400G SR4, 400G AOC and 800G SR8 series optical modules only need VCSEL chip to cooperate with DSP or CDR, which has more advantages in cost and power consumption, so in the short-distance transmission scene of data center, SR and AOC series optical modules are usually selected.

[0004] In the prior art, different connectors such as MT or Jumper are needed due to the difference of tail fiber in the production process of SR and AOC, and different PEI Lens and switching processes are needed in the assembly process, which has poor compatibility and is not suitable for rapid iteration and low-cost needs of modules. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model solves the technical problems of the prior art, that is, the switching between AOC series modules and SR series modules is complicated, the compatibility is poor, and the production cost is high.

[0006] To solve the above technical problems, the utility model provides an optical module connection structure, which comprises a PCBA board, a PEI Lens, an MT connector and a Jumper connector, the PEI Lens is arranged on the PCBA board, a point gluing groove is formed at the interface of the PEI Lens, and clamping holes are arranged on both sides of the interface of the PEI Lens.

[0007] The PEI Lens and the MT connector constitute a first optical module, one end of the MT connector is connected with the PEI Lens, and the MT connector is embedded in the point gluing groove.

[0008] The PEI Lens and the Jumper connector constitute a second optical module, the Jumper connector is connected with the PEI Lens, and a buckle is arranged at one end of the Jumper connector connected with the PEI Lens, and the buckle is matched with the socket.

[0009] In an embodiment of the present application, epoxy resin glue is coated between the MT connector and the dispensing groove.

[0010] In an embodiment of the present application, a laser assembly is further included, the laser assembly is arranged between the PEI Lens and the PCBA board, the laser assembly includes a laser emitter, a light splitting sheet and a detector, the light splitting sheet is arranged on the PEI Lens, the laser emitter and the detector are arranged at the bottom of the light splitting sheet, and the laser emitter and the detector are connected with the PCBA board.

[0011] In an embodiment of the present application, the light splitting sheet is arranged to be inclined to the surface of the PCBA board, and the detector is arranged on the reflected light path of the laser emitter.

[0012] In an embodiment of the present application, the laser emitter is a VSCEL.

[0013] In an embodiment of the present application, the detector is an MPD.

[0014] In an embodiment of the present application, the light splitting sheet is a Filter.

[0015] In an embodiment of the present application, the MT connector and the Jumper connector are provided with optical fibers at the ends away from the PEI Lens.

[0016] The SR optical module comprises the optical module connecting structure.

[0017] The AOC optical module comprises the optical module connecting structure.

[0018] Compared with the prior art, the above technical scheme of the present application has the following advantages:

[0019] The optical module connecting structure, the SR optical module and the AOC optical module provide a PEI Lens structure shared by the MT connector and the Jumper connector, when the two optical modules are produced, the connectors to be connected can be selected, the PEI Lens is shared, and then the scheme that the SR optical module and the AOC optical module share the PEI Lens can be realized, the complicated switching process is reduced, and the production cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to make the content of the utility model more easily be clearly understood, the following according to the specific embodiment of the utility model and combining with the drawings, the utility model is further detailed, wherein

[0021] Figure 1 It is the overall structure schematic diagram of the utility model;

[0022] Figure 2 For Figure 1 The structure schematic diagram of PEI Lens in it;

[0023] Figure 3 It is the structure schematic diagram of the first optical module in the utility model;

[0024] Figure 4 It is the structure schematic diagram of the second optical module in the utility model;

[0025] Figure 5 It is the structure schematic diagram of laser assembly in the utility model;

[0026] Figure 6 It is the structure schematic diagram of SR optical module in the utility model;

[0027] Figure 7 It is the structure schematic diagram of AOC optical module in the utility model;

[0028] The description of the drawing of the specification is as follows: 1, PCBA board;2, PEI Lens;3, MT connector;4, Jumper connector;5, optical fiber;6, transmitter;7, light splitting sheet;8, detector. Specific implementation

[0029] The utility model is further explained in conjunction with the drawings and specific embodiment, so that the person skilled in the art can better understand the utility model and can be implemented, but the embodiment is not as the limitation of the utility model.

[0030] Referring to Figures 1-4 The utility model discloses a kind of optical module connecting structure, it include: PCBA board 1, PEI Lens 2, MT connector 3 and Jumper connector 4, the PEI Lens 2 is arranged on the PCBA board 1, point glue groove is opened at the interface of the PEI Lens 2, the two sides of the interface of the PEI Lens 2 are provided with bayonet;

[0031] The PEI Lens 2 and MT connector 3 constitute first optical module, one end of the MT connector 3 is connected with the PEI Lens 2, and the MT connector 3 is embedded in the point glue groove;

[0032] The PEI Lens 2 and the Jumper connector 4 constitute a second optical module, the Jumper connector 4 is connected with the PEI Lens 2, and a buckle is arranged at one end of the Jumper connector 4 connected with the PEI Lens 2, and the buckle is matched with the socket.

[0033] The optical module connecting structure in the utility model is based on the structure of the PEI Lens 2, PEI Lens 2 spaces are reserved on the PCBA board 1, so that the PEI Lens 2 is connected with the PCBA board 1. The first optical module in the utility model comprises an MT connector 3 and a PEI Lens 2, specifically, a dot gluing groove is arranged at one side of the PEI Lens 2 structure at an interface, and the dot gluing groove can be adapted to the MT connector 3, in the actual assembly process, the MT connector 3 can be embedded in the dot gluing groove, then connected with the PEI Lens 2, and glued at the connection position by means of glue, so that the stability of the connection is guaranteed. The second optical module in the utility model comprises a Jumper connector 4 and a PEI Lens 2, sockets are arranged at two sides of the PEI Lens 2 interface, buckles matched with the sockets are arranged at two sides of the connection port of the Jumper connector 4, one side of the buckle is buckled at the socket, and the connection of the Jumper and the PEI Lens is completed.

[0034] The utility model provides a kind of PEI Lens 2 structure compatible with MT connector 3 and Jumper connector 4, when the production of two kinds of optical modules, the connector to be connected respectively can be selected, the sharing of PEI Lens 2 is realized, and then the scheme that SR, AOC optical module shares PEI Lens 2 can be realized, the cumbersome switching process is reduced, and production cost is reduced.

[0035] Further, epoxy resin glue is coated between the MT connector 3 and the dot gluing groove.

[0036] Specifically, epoxy resin glue has very strong adhesive force on metal (such as copper, stainless steel), glass, ceramic, PCB substrate, plastic (such as PEI, LCP) and other materials, which can ensure the firm fixation of internal precision components of the optical module and avoid displacement or falling caused by vibration and impact.

[0037] As a preferred scheme of the utility model, epoxy resin glue can also be applied to fix the dot gluing groove of the PEI Lens 2 during the assembly process of the second optical module, to further ensure the reliability of the Jumper connection.

[0038] Further, refer to Figure 5As shown, further comprising a laser assembly, which is arranged between the PEI Lens 2 and the PCBA board 1, the laser assembly comprising a laser emitter 6, a light splitting sheet 7 and a detector 8, the light splitting sheet 7 is arranged on the PEI Lens 2, and the laser emitter 6 and the detector 8 are arranged at the bottom of the light splitting sheet 7, and the laser emitter 6 and the detector 8 are connected with the PCBA board 1.

[0039] The light module structure in the utility model further comprises a laser assembly, and the first light module and the second light module are both internally provided with the laser assembly. Specifically, the laser emitter 6 arranged on the PCAB board is used for emitting an optical signal, the optical signal is emitted to the light splitting sheet 7, a part of light enters into the PEI Lens 2 through the light splitting sheet 7, and finally is transmitted to the MT connector 3 or the Jumper connector 4; a part of light is reflected to the detector 8 through the light splitting sheet 7 and is used for detecting the optical signal of the laser emitter 6.

[0040] Further, in order to ensure that the detector 8 can effectively receive the optical signal reflected by the light splitting sheet 7, the light splitting sheet 7 is arranged to be inclined to the surface of the PCBA board 1, and the detector 8 is arranged on the reflected light path of the laser emitter 6.

[0041] Further, the laser emitter 6 is a VSCEL, has a good light beam integration feature, is suitable for a short-distance data center optical module, has good reliability, a plane structure has no cantilever beam or fragile optical alignment structure, has higher mechanical strength, and has good vibration resistance and impact resistance.

[0042] Further, the detector 8 is an MPD, has good high resolution and spatial information capture capability, also has good anti-interference performance, and improves the reliability of feedback signal identification.

[0043] Further, the light splitting sheet 7 is a Filter. A multifunctional composite filter is arranged in the Filter, the multifunctional composite filter can realize three-in-one filter of antireflection, narrowband and polarization, simultaneously realizes high light transmittance (more than 95%), wavelength selection and polarization state control, and simplifies an optical system architecture.

[0044] Further, the MT connector 3 and the Jumper connector 4 are provided with optical fibers 5 away from one end of the PEI Lens 2.

[0045] Specifically, after the optical signal enters the MT connector 3 and the Jumper connector 4 through the PEI Lens 2, the optical signal can be emitted through the optical fiber 5.

[0046] As an embodiment of the utility model, further comprising an SR optical module, comprising the optical module connecting structure, for reference Figure 6As shown, the MT connector 3 is used as the receiving module in the embodiment. Specifically, when the SR optical module is used:

[0047] At the transmitting end, light is emitted from the VCSEL on the PCBA board 1, part of the light is reflected into the MPD through the coated Filter, and the other part of the light is transmitted to the PEI Lens 2 through the Filter, the light beam is transmitted to the MT connector 3 through the PEI Lens 2, and then into the multimode optical fiber 5.

[0048] At the receiving end, the light beam is transmitted from the multimode optical fiber 5 to the MT connector 3, then into the PEI Lens 2 through the MT connector 3, and finally received by the PD (photodiode).

[0049] As an embodiment of the utility model, an AOC optical module is further included, which comprises the optical module connecting structure, and the specific reference Figure 7 As shown, the Jumper connector 4 is used as the receiving module in the embodiment. Similarly, when the AOC optical module is used:

[0050] At the transmitting end, light is emitted from the VCSEL on the PCBA, part of the light is reflected into the MPD through the coated Filter, and the other part of the light is transmitted to the PEI Lens 2 through the Filter, the light beam is transmitted to the Jumper connector 4 through the PEI Lens 2, and then into the multimode optical fiber 5.

[0051] At the receiving end, the light beam is transmitted from the multimode optical fiber 5 to the Jumper connector 4, then into the PEI Lens 2 through the Jumper connector 4, and finally received by the PD (photodiode).

[0052] In summary, the utility model introduces an optical module connecting structure, an SR optical module and an AOC optical module, provides a PEI Lens 2 structure shared by MT connector 3 and Jumper connector 4, when the two optical modules are produced, the connector to be connected can be selected, the sharing of PEI Lens 2 is realized, and then the scheme of sharing PEI Lens 2 by SR optical module and AOC optical module can be realized, the complicated switching process is reduced, and the production cost is reduced.

[0053] Obviously, the above embodiment is only an example for clear illustration, and is not a limitation on the implementation. For ordinary skilled persons in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the implementation is not required or can not be exhausted. The obvious changes or variations derived therefrom are still within the protection scope of the utility model.

Claims

1. An optical module connection structure, characterized in that, Comprise: PCBA board, PEI Lens, MT connector and Jumper connector, the PEI Lens is arranged on the PCBA board, the PEI Lens interface is provided with a point glue groove, and the two sides of the PEI Lens interface are provided with a bayonet; The PEI Lens and the MT connector form a first optical module, one end of the MT connector is connected with the PEI Lens, and the MT connector is embedded in the point glue groove; The PEI Lens and the Jumper connector form a second optical module, the Jumper connector is connected with the PEI Lens, one end of the Jumper connector connected with the PEI Lens is provided with a buckle, and the buckle is matched with the bayonet.

2. The optical module connection structure according to claim 1, characterized by: Epoxy resin glue is coated between the MT connector and the point glue groove.

3. The optical module connection structure according to claim 1, characterized by: Further comprising a laser assembly, the laser assembly is arranged between the PEI Lens and the PCBA board, the laser assembly comprises a laser emitter, a light splitting sheet and a detector, the light splitting sheet is arranged on the PEI Lens, the laser emitter and the detector are arranged at the bottom of the light splitting sheet, and the laser emitter and the detector are connected with the PCBA board.

4. The optical module connection structure according to claim 3, characterized by: The light splitting sheet is arranged to be inclined to the surface of the PCBA board, and the detector is arranged on the reflected light path of the laser emitter.

5. The optical module connection structure according to claim 3, characterized by: The laser emitter is a VSCEL.

6. The optical module connection structure according to claim 3, characterized by: The detector is an MPD.

7. The optical module connection structure according to claim 3, characterized by: The light splitting sheet is a Filter.

8. The optical module connection structure according to claim 1, characterized by: The MT connector and the Jumper connector are provided with optical fibers at the ends away from the PEI Lens.

9. An SR optical module characterized by comprising: Comprise the optical module connection structure as claimed in any one of claims 1-8.

10. An AOC optical module, characterized by, Comprise the optical module connection structure as claimed in any one of claims 1-8.

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