Method, apparatus and system for optical communications

H - Electricity – 04 – B

Patent

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H04B 10/00 (2006.01)

Patent

CA 2550618

The present invention relates to an optical communication system, sub data rate multiplex/ demultiplexer equipment and method, enable optical communication system to satisfy the need of city LAN using existing fiber optical network. This optical communication system includes: optical transmission module and optical received module connected by fiber, optical transmission module convert the input electrical signal to optical signal and transmit it to optical received module by fiber, optical received module convert the received optical signal to electrical signal and input it. There is at least one wavelength data transmitted data at about 5Gb/s in optical signal transmitted in fiber, there can be one or many optical amplifiers for amplifying optical signal between optical transmission module and optical received module.

La présente invention a trait à un système de communication optique, un équipement de multiplexage/démultiplexage de débit de sous-données et un procédé, permettant la satisfaction par un système de communication optique des besoins d'un réseau local urbain au moyen d'un réseau à fibres optiques existant. Le système de communication optique de l'invention comporte : un module de transmission optique et un module de réception optique reliés par fibres, un module de transmission optique assurant la conversion d'un signal électrique d'entrée en un signal optique et sa transmission au module de réception optique, un module de réception optique assurant la conversion du signal optique reçu en un signal électrique et sa saisie. Il est prévu au moins une donnée de transmission d'information de longueur d'onde à environ 5 gigabits/seconde dans la transmission de signal optique par fibres, éventuellement un ou des amplificateurs pour l'amplification du signal optique entre le module de transmission et le module de réception.

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