A distributed automatic power optimization system and method

Abstract

A distributed automatic power optimization system and method, applied to a wavelength division communication system; the system includes: one or more automatic power optimization APO groups, belonging to one or more pre-divided APO links, and one APO group only belongs to one APO chain Each APO group in an APO link has a one-to-one correspondence with every two adjacent stations in the APO link; the APO group is used to adjust the power of the corresponding two APO links when the APO link it belongs to is triggered Adjust the power attenuation or gain between two adjacent stations, and report the adjustment result; the network management system is used for knowing that all APO groups in an APO link have been successfully adjusted, if there is a next APO chain in the APO link If there is no link, the next APO link is triggered to perform power regulation. The invention can improve the response speed and execution efficiency to the change of the main light power without occupying a large amount of resources of the network management system.

Description

technical field [0001] The invention relates to the field of wavelength division communication, in particular to a distributed automatic power optimization system and method. Background technique [0002] The main optical power of the WDM communication system must ensure the power budget of the system design to ensure the normal operation of the receiver; at the same time, in order to ensure that expansion or other operations of increasing or decreasing wavelength channels do not affect the existing service transmission, the system requires The optical amplifier works in a gain-locked state. When the system is running, if the optical fiber attenuation changes due to aging or other factors, the power of the service optical signal will change, and in severe cases, the service will be interrupted. [0003] In order to avoid the impact of fiber attenuation changes on service transmission, the WDM communication system needs to have an automatic power adjustment function, that is...

AI Technical Summary

Problems solved by technology

The general automatic power optimization (Automatic Power Optimization) subsystem is implemented on the network management system. Because the network management system is a multi-tasking operating system, the APO subsystem implementation mechanism on the network management system must be a regular query mechanism. Small, it will occupy a lot of resources of the network management system, and it is easy to cause the network management system to crash, so it has low practicability in actual engineering

But if it is too large, the response speed to the main light power change is slow, and the execution efficiency is low

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