Optical data signals

Details Optical data signals Optical data signals

H - Electricity

04

J

H04J 14/02 (2006.01) H04B 10/135 (2006.01) H04B 10/155 (2006.01) H04Q 11/00 (2006.01)

Patent

CA 2386660

A method of encoding control information on an optical data signal to be transmitted through an optical network, comprising operating an optical source to generate a substantially coherent continuous-wave light beam, amplitude- modulating the light beam with a data stream to produce an optical data signal, and also modulating the data signal with control information, using a substantially constant amplitude modulation technique.

Cette invention concerne une technique de codage de l'information de commande sur un signal de donnée optique à transmettre via un réseau optique. Cette technique consiste à : solliciter une source optique pour générer un faisceau de lumière continue sensiblement cohérente ; à moduler en amplitude le faisceau lumineux au moyen d'un train de données pour obtenir un signal de donnée optique ; et moduler par ailleurs le signal de donnée portant l'information de commande au moyen d'une technique de modulation d'amplitude sensiblement constante.

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