METHOD, DEVICE AND SYSTEM FOR OPTICAL POWER DEBUGGING

摘要

The present invention provides a method for monitoring and adjusting optical power, where the method includes: according to a characteristic of a service, calculating a degraded coefficient corresponding to each service; according to a nominal signal-to-noise ratio input and a nominal power input which are between nodes, calculating a nominal signal-to-noise ratio output between the nodes; according to the nominal signal-to-noise ratio input and the nominal signal-to-noise ratio output between the nodes, calculating a nominal degraded degree of an OSNR between the nodes; according to the degraded coefficient corresponding to each service, and the nominal degraded degree of the OSNR between the nodes, calculating a target degraded degree of each service between the nodes; according to the target degraded degree of each service between the nodes, calculating a target optical power adjusting value of each service at a sending end node; and sending the target power adjusting value of each service at the sending end node to an optical power adjusting unit which is at the sending end node, to adjust optical power of each service. The present invention further provides an apparatus and a system for monitoring and adjusting optical power. Transmission signal quality at a receiving end can be averaged by adopting the present invention.