Patent ID: 6115157
Filing Date: 2000-09-05
Classification: H04J

Abstract:
A method for equalizing the performance of (J) transmission channels of a WDM link connecting a first terminal and a second terminal, comprising the steps of:(a) identifying an error threshold level E(j).sub.Fail of an error count indicator E(j) for a signal S(j), said E(j) characterizing the distortion of said signal S(j) between said first and said second terminal;(b) determining an attenuation A(j) of a parameter of interest P(j) of said signal S(j) between said first and said second terminal;(c) repeating steps (a) to (b) for all said J channels of said WDM system;(d) at said first terminal, adjusting said parameter P(j) according to all said attenuations A(j); and(e) repeating step (d) for all said signals S(j) for obtaining substantially equal values of said parameter for all said J signals at said second terminal.