H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 10/18 (2006.01) H04B 10/16 (2006.01) H04B 10/17 (2006.01) H04J 14/02 (2006.01)
Patent
CA 2238923
The invention relates to an optical transmission system including a transmission line comprising at least one optical fibre amplifier. According to the invention, provision is made for coupling an optical amplifier (OA) with stabilized gain to the input of the line (F), the said stabilized-gain amplifier comprising a local oscillator able to emit an auxiliary compensating wave whose wavelength .lambda.loc is in the gain band of each optical fibre amplifier on the line. Provision is made also for modulating the pump current of the stabilized-gain amplifier to carry service information.
L'invention concerne un système à transmission optique comprenant une ligne de transmission comportant au moins un amplificateur à fibre optique. Selon l'invention il est prévu de coupler un amplificateur optique à gain stabilisé (OA) à l'entrée de la ligne (F), ledit amplificateur à gain stabilisé comprenant un oscillateur local apte à émettre une onde auxiliaire de compensation dont la longueur d'onde .lambda.loc est dans la bande de gain de chaque amplificateur à fibre optique de la ligne. Il est prévu également de moduler le courant de pompe dudit amplificateur à gain stabilisé pour transporter des informations de service.
Bruyere Franck
Jourdan Amaury
Sotom Michel
Soulage Guy
Alcatel
Alcatel Alsthom Compagnie Generale D'electricite
Robic
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