Wavelength division multiplexing transmission system, optical channel monitor and optical channel monitoring method

摘要

A light channel monitor includes an optical separating section configured to separate a wavelength multiplexed optical signal into optical signals for channels and monitors configured to measure intensities of the optical signals for the channels. A processing section is configured to correct the measured intensities of the optical signals based on a wavelength transmission characteristic of the optical separating section to calculate the wavelength multiplexed optical signal before the separation.

主权项

1. A light channel monitor comprising:
an optical separating section configured to separate a first wavelength multiplexed optical signal into optical signals for channels; monitors configured to measure intensities of the optical signals for the channels; and a processing section configured to correct the measured intensities of the optical signals based on a wavelength transmission characteristic of said optical separating section to calculate the intensity which the wavelength multiplexed optical signal before the separation had, wherein said measured intensities corrected by said processing section is used to correct an intensity of a second wavelength multiplexed optical signal, and wherein said first wavelength multiplexed optical signal and said second wavelength multiplexed optical signal are branched from a same original wavelength multiplexed optical signal.