H - Electricity – 04 – J
Patent
H - Electricity
04
J
H04J 14/02 (2006.01) G02B 6/12 (2006.01) G02F 1/313 (2006.01) H04Q 11/00 (2006.01)
Patent
CA 2335708
The present invention concerns a multi-wavelength selective switch in the form of a directional coupler structure. The directional coupler structure comprises two waveguides, wherein the waveguides arranged exhibit different effective diffractive index. The waveguides in one section are arranged in the proximity of each other, such that an optical field in the first waveguide can overlap a second waveguide and vice versa and that in said section at least two gratings are arranged for co-directional coupling. Said gratings are arranged isolated from each other. The invention further comprises a method for switching of wavelength channels through the use of said multi-wavelength selective switch.
L'invention concerne un commutateur sélectif à longueurs d'ondes multiples se présentant sous forme d'une structure de coupleur directionnel. Cette structure de coupleur directionnel comprend deux guides d'ondes comportant un indice de réfraction effective différent. Dans une section, ces guides d'ondes sont disposés à proximité l'un de l'autre de manière qu'un champ optique du premier guide d'ondes peut chevaucher celui d'un second guide d'onde et vice versa, et au moins deux réseaux sont disposés de manière à permettre un couplage codirectionnel. Ces réseaux sont isolés l'un de l'autre. L'invention concerne en outre un procédé permettant de commuter les canaux de longueur d'ondes au moyen de ce commutateur sélectif à longueurs d'ondes multiples.
Nicolaescu,sawyer
Telefonaktiebolaget Lm Ericsson
LandOfFree
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