Patent ID: 8340515
Filing Date: 2012-12-25
Classification: H04B,H04J

Abstract:
1. A method for dispersion monitoring and compensation of an optical signal communicated in an optical network, the method comprising: transmitting each of a plurality of carrier optical signals at a particular wavelength; iteratively transmitting a plurality of test optical signals, each test optical signal at a selected wavelength of the particular wavelengths and modulated according to a modulation technique such that the modulation indicates that the test optical signal is a test optical signal; for each test optical signal, combining the test optical signal with each of the carrier optical signals other than the carrier optical signal at the selected wavelength of the test optical signal into a multi-channel signal; analyzing the multi-channel signal to determine if any of a plurality of channels of the multi-channel signal are modulated according to the modulation technique; for each test optical signal, splitting the test optical signal from the multi-channel signal based on a determination that the test optical signal is on the channel modulated according to the modulation technique; analyzing the test optical signal split from the multi-channel signal to measure optical dispersion in the test optical signal; and for each test optical signal, compensating for optical dispersion on a channel of the selected wavelength of the test optical signal based on the measured dispersion.