Optical switching device with passive input and output...

Details Optical switching device with passive input and output... Optical switching device with passive input and output...

G - Physics

02

F

G02F 1/25 (2006.01) G02F 1/313 (2006.01) H04Q 3/52 (2006.01)

Patent

CA 2118511

A semiconductor optical switching device comprises a passive optical input stage (1), a matrix stage (2) and a passive optical output stage (3). The matrix stage incorporates active amplifiers (6), the switch as a whole being therefore part passive and part active. Control over the switching configuration is provided by electrical inputs to the amplifiers (6). The matrix stage (2) guides optical signals in a direction transverse to optical signals propagating in the input or output stages (1, 3). With this configuration, fixed change in direction of the optical paths available to optical signals propagating through the device are provided by splitters (4), combiners (5) and total internal reflection mirrors (9).

Un dispositif de commutation optique comprend un étage d'entrée de signal optique (1), un étage matriciel (2) et un étage de sortie de signal optique passif (3). L'étage matriciel comprend des amplificateurs actifs (6), le commutateur entier étant ainsi en partie passif et en partie actif. Des signaux d'entrée électriques alimentant les amplificateurs (6) servent à commander la configuration de commutation. L'étage matriciel (2) guide les signaux optiques dans une direction transversale par rapport aux signaux optiques se propageant dans les étages d'entrée ou de sortie (1, 3). Grâce à cette configuration, des changements fixes de direction des chemins optiques disponibles pour les signaux optiques se propageant à travers le dispositif sont produits par des diviseurs (4), des coupleurs (5) et des miroirs à réflexion interne totale (9).

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