Method for automatically regulating optical power

Abstract

The invention relates to a method for automatically regulating optical power. The method comprises steps as follows: after a dynamic power control function is started, a head node duly transmits an output optical power value as an output optical power value expected by downstream nodes to the downstream nodes through a 2.112M data channel, element management U-disks (EMU) of the downstream nodes monitor a difference between the output optical power of the current node and the expected output optical power through acquiring an output power value of an amplification disk; and when the head node increases or reduces the quantity of carriers or line attenuation is increased to cause that the difference changes and exceeds a regulating threshold, the EMUs automatically send a regulating command to the amplification disk for regulating the power output value. According to the invention, the EMUs are cooperated with a web master, an optical supervisory channel (OSC) and the amplification disk to be capable of automatically carrying out power transmission and processing and completing an automatic optical power regulation function, and the purpose of dynamically regulating the output optical power of each node to an ideal output value is achieved without manual control and regulation.

Description

technical field [0001] The invention relates to the adjustment of optical power, which belongs to the technical field of communication, and specifically relates to a method for automatically adjusting optical power. Optical power automatic adjustment is called DPA for short. Background technique [0002] In the existing optical communication technology field, according to the requirement of service increase or decrease, it is usually necessary to increase or decrease the number of carriers used to transmit various service data at the head node. After the first node increases or decreases the number of carriers, its output optical power will also increase or decrease accordingly. In engineering applications, it is usually required that the output optical power of the downstream node is equal to or similar to that of the first node. In addition, when the attenuation of a certain line increases, the output optical power of the downstream node will also decrease, and even the ...

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Problems solved by technology

[0003] Aiming at the defects existing in the prior art, the purpose of the present invention is to provide a method for automatically adjusting the optical power to solve the problem in the prior art that the output value of the optical power of each node must be manually controlled and adjusted. The network element management disk EMU serves as the The controller is responsible for processing the communication between the nodes, responsible for the collection and calculation of the data of each amplifier inside the node, responsible for issuing adjustment instructions to the amplifier, and coordinating with the network management, the optical monitoring channel disk OSC, and the amplifier to transmit and process power data , together to complete the automatic adjustment of optical power, the network element management panel EMU can automatically send an optical power adjustment command to the amplifier panel to adjust the power output value, and dynamically adjust the output optical power of each node to the ideal output value

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