Thermo-optical cascaded switch comprising gates

Details Thermo-optical cascaded switch comprising gates Thermo-optical cascaded switch comprising gates

G - Physics

02

F

G02F 1/00 (2006.01) H04Q 3/52 (2006.01) H04Q 11/00 (2006.01)

Patent

CA 2292509

The invention pertains to a thermo-optical switch comprising a cascade of 1xM optical switches, gates for selectively blocking and unblocking the output paths of the cascaded switch, and means for driving the 1xM switches and the gates, which means are arranged to switch a data signal from an input path of the cascaded switch to one of the output paths, wherein the said means are also arranged to switch an unwanted signal, by means of a number of the remaining 1xM switches, to at least one of the remaining output paths. In the cascaded switch according to the invention, the generated heat is distributed evenly over the area of the switch and the overall amount of heat generated is reduced.

La présente invention concerne commutateur thermo-optique comprenant une cascade d'un million de commutateurs optiques, des portes permettant le blocage ou le déblocage sélectif des voies de sortie du commutateur monté en cascade et un organe de pilotage du million de commutateurs et de leurs portes. Cet organe est agencé de façon à commuter, sur l'une des voies de sortie du commutateur en cascade, un signal de données provenant d'une voie d'entrée du commutateur en cascade. En l'occurrence, cet organe est également agencé de façon à commuter, sur au moins l'une des voies de sortie restante, un signal inopportun en utilisant plusieurs des commutateurs du million restant. Dans le dispositif de commutation monté en cascade de la présente invention, la chaleur produite est uniformément répartie sur la surface du commutateur ce qui permet de réduire le dégagement global de chaleur.

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