Optical switch assembly

G - Physics – 02 – B

Patent

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

Patent

CA 2498470

An apparatus (10) for switching a single optical signal to any one of several outputs. An input collimator (202) transmits an optical signal (402) that is reflected from two mirrors (112, 114) on an optical bench (102) into an output collimator (212). Between the two mirrors (112, 114) is an actuator (232) that interrupts the optical signal (404) and reflects another signal (602) from an end collimator (312) into one mirror (116) and the output collimator (212). The alignment of the collimators (202, 212) and actuators (232) relative to the optical bench (102) is achieved by actively aligning the elements, which includes monitoring an optical signal passing through the collimator and using the signal as feedback for positioning control.

L'invention concerne un appareil (10) permettant de commuter un signal optique indivivuel vers une sortie parmi plusieurs sorties. Un collimateur d'entrée (202) transmet un signal optique (402) qui est réfléchi par deux miroirs (112, 114) situés sur un banc optique (102) dans un collimateur de sortie (212). Un actionneur (232) situé entre les deux miroirs (112, 114) interrompt le signal optique (404) et réfléchit un autre signal (602) depuis un collimateur d'extrémité (312) dans un miroir (116) et dans le collimateur de sortie (212). L'alignement des collimateurs (202, 212) et des actionneurs (232) par rapport au banc optique (102) est obtenu par alignement actif des éléments, qui consiste à surveiller un signal optique passant par le collimateur et à utiliser le signal en tant que retour pour la commande du positionnement.

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