Light active coupling system and method of optical module

Abstract

The invention discloses a light active coupling system and method of an optical module. The light active coupling system comprises a coupled light module and a coupling light module. The coupling light module comprises a light receiving unit, a response current detection module and a microprogrammed control unit (MCU), wherein a photodiode of the light receiving unit generates corresponding response current when detecting the optical signals emitted by the coupled light module; the response current detection module is used for receiving the response current output by the photodiode and outputting corresponding voltage from a voltage output end of the response current detection module according to the input response current; and the MCU detects voltage output by the response current output module and calculates optical power of an optical signal emitted by a laser emission light source of the coupled light module according to the detected voltage, wherein the light power serves as a light active coupling basis of emission light of the coupled optical module. A laser receiving function of the coupling optical module is used for testing the optical power of the laser emitted by the coupled optical module, so that an optical power meter is saved during the optical coupling, complicated operations such as optical fiber inserting and plugging and optical power meter connection are omitted, and the operation is easy.

Description

technical field [0001] The invention relates to optical fiber communication technology, in particular to an optical module optical active coupling system and method. Background technique [0002] In the current domestic market and international market, the direction of optical fiber communication with high bandwidth, high speed and multi-service integration has begun to be applied. Optical modules are key devices in optical networks. For example, 4-channel parallel optical QSFP+ transceiver modules are widely used in 40G Ethernet. [0003] Coupling is one of the key processes of the optical module, and the coupling effect directly affects the performance of the outgoing light of the optical module. The coupling process of the parallel optical transceiver module is: let the optical transmitting unit (VCSEL Array), the optical receiving unit (pin-PD Array) and the optical transmission path (mainly optical fiber) have a better optical transmission path, so that the optical fib...

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Problems solved by technology

[0006] In the prior art, in the process of optical active coupling to the optical module, it is necessary to plug and unplug the optical fiber, connect the optical power meter to measure the optical power, and use the ammeter to measure the current generated by the photodiode one by one to perform the coupling of the optical path. The operation is cumbersome and complicated, resulting in low test efficiency

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