Fault isolation technique for optical networks

Details Fault isolation technique for optical networks Fault isolation technique for optical networks

2006-07-18

2006-07-18

Bello, Agustin (Department: 2633)

Optical communications

Diagnostic testing

Fault location

C398S017000

Reexamination Certificate

active

07079764

ABSTRACT:
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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