Near-distributed amplification in a solitary-signal fibre...

H - Electricity – 04 – B

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

Patent

CA 2276905

L'invention concerne un système de transmission à fibre optique à signaux solitons et à multiplexage de longueur d'onde; pour réduire les effets de la gigue de collision sur les canaux solitons, elle propose de procéder à une amplification quasi-distribuée, combinant une amplification discrète et une amplification distribuée. On peut ainsi combiner un pompage (24, 26) d'une fibre de ligne faiblement dopée et une amplification discrète par un EDFA (16) dans les répéteurs (5i). Avantageusement, on utilise des moyens de pompage redondants et communs pour l'amplification discrète et l'amplification distribuée, et on contrôle automatiquement le gain de l'amplification discrète.

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