Method and a system for monitoring the transmission of optical signals
AssigneeAlcatel
InventorsArnaud Bisson, Jean-Paul Faure, Ludovic Noirie
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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.
Claims10
A method of monitoring the transmission of optical signals each carried by a predefined wavelength defining a transmission channel (Ci), said method including a step of inserting a monitoring signal (S) during the transmission of said optical signals, said signals being grouped onto the same fiber to form a multiplex defining a band (B) of channels (Ci), which method is characterized in that it includes a modulation step consisting in simultaneously modulating said signals of the multiplex of said band (B) of channels (Ci) as a function of said monitoring signal (S) to be transmitted, so that each of said signals constitutes a carrier of said monitoring signal (S).
Dependencies are inferred from the claim text.