Optical module aging test method and system

Abstract

The invention discloses an optical module aging test method and system, the optical module comprises an optical transmitting port, an optical receiving port and a monitoring module, and the monitoring module is used for generating a monitoring value according to a signal received by the optical receiving port. The method comprises the following steps: connecting the light transmitting port and the light receiving port through an optical fiber; reading monitoring values of the monitoring module before and after aging, and outputting an aging test result according to changes of the monitoring values before and after aging; in addition, the bias current of the optical module can be adjusted according to a mapping table of the bias current and the temperature. According to the invention, the misjudgment rate of poor aging is reduced, the aging test efficiency is improved, and the aging test cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of optical communication, and more particularly relates to an optical module aging test method and system. Background technique [0002] The optical module is mainly used for the transmission and reception of optical signals, and is the core device in the optical fiber communication system. The optical module aging process is an important process in the production process. Its main purpose is to screen out lasers with weak reliability through the aging process to avoid early failure of the optical modules shipped to the client, so as to ensure the smooth operation of the optical communication network. [0003] The current aging process needs to go through the main steps of pre-aging test, aging in the aging environment test chamber, post-aging test and judging whether it is qualified or not. Such as figure 1 As shown, it specifically includes: (1) firstly carry out the pre-aging test, insert the optical mo...

AI Technical Summary

Problems solved by technology

This method has the following disadvantages: (1) At least two times of plugging and unplugging of optical fibers are required in the pre-aging and post-aging tests, and each plugging and unplugging of optical fibers will bring test errors; (2) This process requires multiple adjustments of bias current, Increases the complexity of the production test software, which is easy to cause confusion; (3) For the same optical module, the machines tested before and after burn-in are usually not the same test system, and there are fixed test deviations between systems, including optical fiber Own loss and deviation caused by optical power meter

The above deficiencies may cause a certain proportion of qualified optical modules to be misjudged as bad, which increases the manufacturing cost

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