Optical transmission systems using optical amplifiers and...

H - Electricity – 04 – J

Patent

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H04J 14/02 (2006.01) H04B 10/00 (2006.01) H04B 10/17 (2006.01) H04B 10/24 (2006.01)

Patent

CA 2257495

The invention provides a method and system for transmitting very high bit rates over an optical link, using unidirectional and bidirectional WDM technology. The 1550 nm window for optical transmission is spatially separated into two bands, "Red" and "Blue", and the channels in each band are selected so that respective wavelengths present a substantially equal gain tilt. A fiber amplifier designed according to spatial separation and wavelength selection of the invention is disclosed, along with multiple span WDM network topologies.

L'invention porte sur un procédé et un système de transmission de débits binaires très élevés sur une ligne optique recourant à la technique MLR unidirectionnelle ou bidirectionnelle. La fenêtre de 1550 nm servant aux transmissions optiques est divisée spatialement en deux bandes "Rouge" et "Bleue" et les canaux de chacune des bandes sont sélectionnés pour que leurs longueurs d'ondes respectives présentent une pente de gain sensiblement égale. L'invention porte également sur un amplificateur pour fibres conçu selon les principes de la séparation spatiale et de la sélection de longueurs d'ondes objet de l'invention, et sur des topologies de réseaux MLR à liaisons par câble multiples.

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