Optical performance monitoring scheme

Details Optical performance monitoring scheme Optical performance monitoring scheme

2005-01-11

2005-01-11

Bovernick, Rodney (Department: 2874)

Optical waveguides

With optical coupler

Plural

C385S048000, C398S197000

Reexamination Certificate

active

06842561

ABSTRACT:
A method for determining optical power in a WDM optical signal that includes extracting a representative portion of the optical signal with wavelengths within some band δ wherein δ is a subset of Δ, the set of all channel wavelengths present in the optical signal and measuring the intensity of the extracted optical signal to determine the optical power per channel for any of the channels whose wavelengths are within the band δ.

REFERENCES:
patent: 5991477 (1999-11-01), Ishikawa et al.
patent: 6128111 (2000-10-01), Roberts
patent: 20020015553 (2002-02-01), Claringburn et al.
patent: 20030098682 (2003-05-01), Jin et al.
Murakami et al., “A Remote Supervisory System Based on Subcarrier Overmodulation for Submarine Optical Amplifier Systems”Journal of Lightwave Technology14:5:671-677, 1996.

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