SFP28 SR optical module structure of COB process

Abstract

The invention provides an SFP28 SR optical module structure of a COB process, and belongs to the field of optical module structures. The SFP28 SR optical module structure comprises a shell, an unlocking mechanism, an EMI shielding structure, a circuit board and a micro-optical assembly arranged at one end of the circuit board; and further comprises an LC jumper wire. The LC jumper wire is connected with the micro-optical assembly in an inserting manner, the shell is a cavity with an open tail end, and a partition wall is arranged at the front end of the middle of the shell. An assembly hole matched with the cross section of the micro-optical assembly is formed in the partition wall, and a mounting cavity for mounting a circuit board is formed in the rear end, on one side of the partition wall, of the shell; and the shell is arranged at the front end of the other side of the partition wall, an opening facing the front end is defined by the four faces of the shell and is divided into twosymmetrical LC optical interfaces by the middle partition plate, the unlocking mechanism is arranged at the front end of the shell, and the EMI shielding structure is arranged on the periphery, corresponding to the partition wall, of the shell. High-frequency signal leakage can be effectively reduced, and each performance of the module is stable.

Description

technical field [0001] The invention relates to an optical module structure, in particular to an SFP28 SR optical module structure of a COB process. Background technique [0002] In the field of 5G communication data centers, COB (Chip On Board, chip on board) technology has become a trend for high-speed short-distance optical modules. The 25G SFP28 SR product is a COB process technology optical transmission module with a center wavelength of 850nm. This optical module must meet multiple standards and specifications such as IEEE802.3, SFF-8472, SFF-8431, and SFF-8432. [0003] Usually, the structure of the optical module needs to meet the external optical interface connection standard, and at the same time, the golden finger end is inserted into the communication device to complete the electrical signal connection. The optical interface of the SFP28 series optical module needs to ensure smooth plugging and unplugging of the LC optical jumper, and the optical power of the ju...

AI Technical Summary

Problems solved by technology

[0008] Traditional optical modules use coaxial devices to input and output optical signals. The connection between optical devices and PCBA basically uses device pins or direct connection between FPC and PCBA pads, and does not involve the connection method of COB micro-optical components.

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