Method and a system for monitoring the transmission of...

Details Method and a system for monitoring the transmission of... Method and a system for monitoring the transmission of...

2007-11-13

2007-11-13

Sedighian, M. R. (Department: 2613)

Optical communications

Diagnostic testing

Determination of communication parameter

C398S030000, C398S043000, C398S079000, C398S082000

Reexamination Certificate

active

10411312

ABSTRACT:
The present invention relates to a method of monitoring the transmission of optical signals including a step of inserting a monitoring signal (S) more particularly suited to monitoring the quality of service. During the transmission of optical signals each carried by a predefined wavelength defining a transmission channel (Ci), said signals are grouped onto the same fiber in a band (B) of channels. The method then includes a step of simultaneously modulating said signals grouped in the band of channels using the monitoring signal to be transmitted, so that each of the signals constitutes a carrier of the monitoring signal.

REFERENCES:
patent: 5654816 (1997-08-01), Fishman
patent: 6094442 (2000-07-01), Okamoto et al.
patent: 6282005 (2001-08-01), Thompson et al.
patent: 6563614 (2003-05-01), Stephens et al.
patent: 0 782 279 (1997-02-01), None
patent: 0 782 279 (1997-07-01), None
patent: WO 01/48962 (2001-07-01), None
patent: WO 0148962 (2001-07-01), None
patent: WO 01/86847 (2001-11-01), None

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