Code-based optical networks, methods, and apparatus

H - Electricity – 04 – J

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Details

H04J 14/02 (2006.01) G02B 6/293 (2006.01) H04B 10/28 (2006.01) H04J 3/24 (2006.01) H04J 14/00 (2006.01) H04J 14/08 (2006.01) H04J 13/00 (2006.01)

Patent

CA 2351682

Optical communication systems (110) include a central station (103) that encodes data transmitted to multiplexing stations (111, 113) or user stations (117). The central station (103) also decodes data received from the multiplexing stations (111, 113) or user stations (117). Encoding and decoding are performed using codes, such as composite codes, that designate sources and destinations for data. The multiplexing stations (111, 113), user stations (117), and the central station (103) have address encoders and decoders that use, for example, fiber Bragg gratings to encode or decode optical signals according to a code such as a composite code derived by combining codes from one or more sets of codes. A passive optical network comprises one or more levels of multiplexing stations (111, 113) that use such address decoders and encoders to receive, decode, and encode data for transmission toward a central station (103) or a user station (117).

Selon cette invention, des systèmes optiques de communication (110) comprennent une station centrale (103) qui code des données transmises vers des stations de multiplexage (111, 113) ou des stations utilisateur (117). La station centrale (103) décode également les données reçues depuis les stations de multiplexage (111, 113) ou les stations utilisateur (117). Le codage et le décodage s'effectuent au moyen de codes tels que des codes composites qui désignent les sources et les destinations pour les données. Les stations de multiplexage (111, 113), les stations utilisateur (117) et la station centrale (103) sont munies de codeurs et de décodeurs d'adresses qui utilisent, par exemple, des réseaux de Bragg de fibres pour coder ou décoder les signaux optiques conformément à un code tel qu'un code composite dérivé par la combinaison de codes depuis un ou plusieurs ensembles de codes. Un réseau passif comprend un ou plusieurs niveaux de stations de multiplexage (111, 113) qui utilisent ces codeurs et décodeurs d'adresses pour recevoir, décoder et coder les données destinées à être transmises vers une station centrale (103) ou une station utilisateur (117).

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