Reconfigurable optical ring transmission network with wavelength division multiplexing for semi-permanent links
. The ring reconfigurable user connection has several nodes (12), in which each node is associated with one of the sites (13), in which the site has at least one user unit. The sites are connected by a fibre optic ring (18,20), passing successively by the nodes, with a predetermined information prog...
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| Format: | Patent |
| Sprache: | eng ; fre ; ger |
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| Zusammenfassung: | . The ring reconfigurable user connection has several nodes (12), in which each node is associated with one of the sites (13), in which the site has at least one user unit. The sites are connected by a fibre optic ring (18,20), passing successively by the nodes, with a predetermined information progression direction. . Each site has a transmitter and receiver (EN,ES,RN,RS) set to a given wavelength, with each node having optical insertion and extraction (IN,IS,XN,XS) mechanisms to connect the site to the ring network, or to optically isolate the site. A controller sets up temporary optical connections between two users at two sites.
Ce réseau comprend au moins un anneau (10) comprenant des noeuds (12) et au moins une fibre optique (18, 20) passant par ceux-ci. Chaque site (13) du réseau comprend des moyens d'émission-réception (EN, ES, RN, RS) à au moins une longueur d'onde et chaque noeud comprend des moyens (IN, IS, XN, XS) d'insertion-extraction optique à cette longueur d'onde et des moyens de commutation optique (CN, CS) pour relier ces derniers aux moyens d'émission-réception. Application aux télécommunications optiques. |
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