Transient suppression in an optical wavelength division...

H - Electricity – 04 – B

Patent

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H04B 10/18 (2006.01) H04B 10/08 (2006.01) H04B 10/152 (2006.01) H04B 10/17 (2006.01) H04J 14/02 (2006.01)

Patent

CA 2214483

An optical level controller (13) for a wavelength division multiplex optical communication network (17) includes one or more variable gain elements (1;9) adapted to suppress transient amplitude fluctuations in traffic signals caused by the adding or the dropping of traffic signals at one more points in the optical communication network. The at least one variable gain element (1;9) is controlled through a negative feedback loop adapted such that a response time of the negative feedback is shorter than a time scale of the transient amplitude fluctuations.

L'invention est un contrôleur de niveau optique (13) de réseau de communication à multiplexage optique (17) qui comprend un ou plusieurs éléments à gain variable (1;9) adaptés de façon à supprimer les fluctuations d'amplitude transitoires dans les signaux de trafic causées par l'injection ou l'extraction de signaux de trafic à un ou à plusieurs points du réseau de communication optique en question. L'un des éléments à gain variable (1;9) au moins est commandé au moyen d'une boucle à réaction négative adaptée de façon que le temps de réponse de cette réaction négative soit plus court qu'une échelle de temps caractérisant les fluctuations d'amplitude transitoires.

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