Low loss optical switch using magnetic actuation and sensing

G - Physics – 02 – B

Patent

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Details

G02B 26/08 (2006.01) G02B 6/35 (2006.01) G02B 7/00 (2006.01)

Patent

CA 2480147

Apparatus and methods are disclosed for selectively positioning a collimator body. The apparatus comprises support means adjustably supporting the collimator body relative to a first position; and adjustment means for selectively adjusting the collimator body from the first position to a second position, the adjustment means comprising an actuator component having a driver coil and a magnetic structure with a first gap formed therebetween, one of the driver coil and the magnetic structure being attached to the selectively positionable collimator body and the other one of the driver coil and the magnetic structure being attached to a fixed support in connection with the support means adjustably supporting the collimator body; wherein an electrical current through the driver coil of the at least one actuator component causes the collimator body to move in a direction perpendicular to a magnetic field created by the magnetic structure of the at least one actuator component. The method comprises supporting the collimator body relative to a first position; and adjusting the collimator body from

L'invention concerne un dispositif et des procédés permettant de positionner sélectivement un corps collimateur. Ce dispositif comprend des moyens de support qui maintiennent de manière réglable le corps collimateur dans une position donnée relativement à une première position, et des moyens de réglage permettant de faire passer sélectivement le corps collimateur de la première position à une seconde position. Ces moyens de réglage comprennent un composant de commande pourvu d'une bobine d'entraînement et d'une structure magnétique séparés par un premier entrefer. La bobine d'entraînement ou la structure magnétique est fixée sur le corps collimateur pouvant être positionné sélectivement, l'autre de ces éléments étant fixé sur un support fixe relié aux moyens de support qui maintiennent de manière réglable corps collimateur. Un courant électrique passant à travers la bobine d'entraînement d'au moins un des composants de commande, provoque le déplacement du corps collimateur dans une direction perpendiculaire à un champ magnétique créé par la structure magnétique du ou des composants de commande.

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