Programmable wavelength router

H - Electricity – 04 – J

Patent

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Details

H04J 14/00 (2006.01) G02B 6/34 (2006.01) G02F 1/31 (2006.01) H04B 10/00 (2006.01) H04Q 11/00 (2006.01) H04J 14/02 (2006.01)

Patent

CA 2268131

A programmable wavelength router (1300) having a plurality of cascaded stages (100) where each stage (100) receives one or more optical signals (101) comprising a plurality of wavelength division multiplexed (WDM) channels. Each stage (100) divides the received optical signals (101) into divided optical signals (116, 117) comprising a subset of the channels and spatially positions the divided optical signals (116, 117) in response to a control signal applied to each stage (100). Preferably each stage (100) divides a received WDM signal (101) into two subsets (116, 117) that are either single channel or WDM signals (101). A final stage (300) outputs optical signals at desired locations. In this manner, 2N optical signals in a WDM signal (101) can be spatially separated and permuted using N control signals.

Cette invention concerne un dispositif programmable de routage de longueur d'onde (1300), lequel comprend plusieurs étages (100) en cascade. Chaque étage (100) va recevoir un ou plusieurs signaux optiques (101) comprenant plusieurs canaux qui sont multiplexés par répartition en longueur d'onde (MRL). Chaque étage (100) va ensuite diviser les signaux optiques (101) reçus en signaux optiques divisés (116, 117) comprenant un sous-ensemble de canaux, puis positionner les signaux optiques divisés (116, 117) dans l'espace en réponse à un signal de commande appliqué à chacun desdits étages (100). Chaque étage (100) va de préférence diviser un signal MRL reçu en deux sous-ensembles (116, 117) qui représentent des signaux (101) de canal unique ou MRL. Le dernier étage (300) va finalement émettre des signaux optiques aux endroits voulus. Ainsi, 2?N¿ signaux optiques d'un signal MRL (101) peuvent être séparés dans l'espace et permutés à l'aide de N signaux de commande.

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