A fault isolation technique for all optical networks

Details A fault isolation technique for all optical networks A fault isolation technique for all optical networks

H - Electricity

04

L

H04L 1/20 (2006.01) H04B 10/08 (2006.01) H04B 10/18 (2006.01) H04L 1/22 (2006.01)

Patent

CA 2399775

A method is provided for isolating faults in an optical network having a plurality of partial regenerators. The method includes: transmitting an optical signal through the optical network; determining an error rate for the optical signal at an egress point of the optical network; sequentially introducing a dither control signal into the optical signal at each of the plurality of partial regenerators; and monitoring the error rate for the optical signal at the egress point of the optical network; thereby isolating where a fault occurs in the optical network.

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