Method and apparatus for combining add/drop optical signal...

H - Electricity – 04 – J

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H04J 14/00 (2006.01) G02B 6/293 (2006.01) G02B 6/34 (2006.01) H04J 14/02 (2006.01)

Patent

CA 2267779

An optical signal processing method and apparatus for combining the add/drop lines for multiple add/drop multiplexers (ADMs) (58, 60, 62) into a single pair of add/drop lines (54, 56), comprising a plurality of optical fiber trunks (42, 44, 46, 48, 50, 52) for carrying trunk traffic, a plurality of branching units (58, 60, 62), each attached to one of the fiber trunks, and each having an add and drop port, a fiber grating (472) in each branching unit for passing the branch traffic from the add port to the drop port of each of the branching units, and a single fiber pair connecting the branching units for carrying branch traffic between the branching units.

Cette invention se rapporte à un procédé et à un appareil de traitement de signaux optiques, qui servent à combiner les lignes d'insertion/extraction de plusieurs multiplexeurs d'insertion/extraction (ADM) (58, 60,62) en une seule paire de lignes d'insertion/extraction (54, 56), ce procédé et cet appareil utilisant plusieurs lignes réseau à fibres optiques (42, 44, 46, 48, 50, 52) pour assurer le traffic interurbain, plusieurs unités de dérivation (58, 60, 62) reliées chacune à l'une des lignes réseau à fibres optiques et comportant chacune un port d'insertion et d'extraction, un réseau de fibres (472) prévu dans chaque unité de dérivation et servant à transférer le traffic interurbain du port d'insertion au port d'extraction de chacune des unités de dérivation, et une seule paire de fibres connectant les unités de dérivation pour assurer le traffic de dérivation entre les unités de dérivation.

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