Method for calibrating, compensating and self-correcting parameters of optical module

Abstract

The invention relates to the technical field of optical fiber communication, and particularly discloses a method for calibrating, compensating and self-correcting parameters of an optical module. The method comprises the steps of: (1) parameter calibration, i.e., reading read-out values of each monitored parameter of the optical module at different temperatures, acquiring corresponding actual values, obtaining a calibration formula and calibrating each monitored parameter by the calibration formula; (2) parameter compensation, i.e., by using a module output at the normal temperature as a reference value, regulating parameter setting of an optical module register to enable an actual module output to be approximate to the reference value, and fitting into a compensation formula; and (3) parameter self-correction, i.e., comparing an output value of each calibrated parameter with an ideal value, and if a large deviation exists, fine regulating the parameter according to a deviation direction, correcting an output effect, and regulating a parameter value of the compensation formula in the step (2). According to the method disclosed by the invention, workload of a worker is reduced, and accuracy and reliability of each parameter index of the optical module are improved.

Description

Technical field [0001] The invention relates to the technical field of optical fiber communication, in particular to a method for optical module parameter calibration, compensation and self-correction. Background technique [0002] At present, there are more and more types of optical modules used in various networks, and the speed is getting faster and faster. Under the increasing network demand, the requirements for the optical module itself are getting higher and higher, and the products of the optical module are constantly increasing. Development towards standardization, miniaturization and intelligence. With the increase in the demand for optical module products and the improvement of various index requirements, high requirements are put forward for the accuracy and reliability of various parameter indexes of the optical module. [0003] In order to realize the monitoring and diagnosis of the optical module, the main chip of some optical modules will contain calibration and co...

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Problems solved by technology

[0003] In order to realize the monitoring and diagnosis of optical modules, the main chip of some optical modules will contain calibration and compensation registers, but some do not include these registers, and the inclusion of calibration and compensation registers does not mean that internal self-diagnosis can be realized. On the one hand , requires human intervention for calibration and compensation experiments, and then manually enters relevant parameter information, which is very inconvenient to operate; on the other hand, chips that include internal self-diagnosis generally require more circuits to implement, and there will be large packages and many pins. high cost

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