Method for lightpath monitoring in an optical routing network

Details Method for lightpath monitoring in an optical routing network Method for lightpath monitoring in an optical routing network

2008-02-06

2011-10-04

Tran, Dzung (Department: 2613)

Optical communications

Diagnostic testing

Determination of communication parameter

C398S033000, C398S065000

Reexamination Certificate

active

08032022

ABSTRACT:
A method and system for enabling lightpath monitoring in an optical network is disclosed. A single polarization modulator/scrambler introduces a pilot tone signal as an overlay on a plurality of optical signals on a source node and a performance monitoring unit detects the pilot tone signal to enable light path monitoring and identification through the optical network.

REFERENCES:
patent: 6559984 (2003-05-01), Lee et al.
patent: 2003/0128982 (2003-07-01), Glingener
patent: 2004/0016874 (2004-01-01), Rao et al.
patent: 2004/0156632 (2004-08-01), Lee et al.

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