All-optical interconnect utilizing polarization gates

G - Physics – 02 – F

Patent

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Details

G02F 1/01 (2006.01) G02B 6/00 (2006.01) G02B 6/26 (2006.01) G02F 1/035 (2006.01) G02F 1/295 (2006.01) G02F 1/315 (2006.01) G02F 1/335 (2006.01) H04Q 11/00 (2006.01)

Patent

CA 2378034

The present invention includes a switch element (100) which utilizes a single polarizer (110) to couple two discreet inputs to any combination of two discreet outputs (1, 2, 3, 4) along non-blocking optical paths. This switch element (100) may be conveniently networked to additional switch elements (100) for scaling to switches having larger numbers (N) of inputs and outputs such as shown as switches (150) and (150'). The present invention is relatively robust and insensitive to environmental disturbances and has a reconfiguration time which is an order of magnitude faster than conventional optomechanical switches which generally require tens of milliseconds before reconfiguration. It further provides for convenient scaling to a non-blocking NxN configuration using N*(log2 N-1) 2x2 switches rather than conventional approaches which require N (log2 N) switches, for a simple and compact configuration.

La présente invention porte sur un élément de commutation (100) utilisant un polariseur (110) unique pour coupler deux entrées distinctes à une combinaison quelconque de deux sorties distinctes (1, 2, 3, 4) le long de voies optiques à l'état non bloquant. L'élément de commutation (100) peut être mis en réseau avec d'autres éléments (100) de commutation pour une augmentation de la puissance de commutation grâce à un plus grand nombre (N) d'entrées et de sorties tel qu'illustré par les commutateurs (150) et (150'). Cette invention est relative cohérente et insensible aux perturbations extérieures et a un temps de reconfiguration sensiblement plus rapide que les commutateurs optomécaniques traditionnels qui nécessitent généralement des dizaines de millisecondes. Cette invention permet également d'augmenter la puissance de la configuration non bloquante en utilisant N*(log2 N-1) 2x2 commutateurs alors que l'approche traditionnelle nécessite N (log2 N) commutateurs, et ce pour une même configuration simple et compact.

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