Miniature 1XN electromechanical optical switch and variable atte

Optical waveguides – With optical coupler – Input/output coupler

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385 15, 385 16, 385 17, 385 24, 385 52, 385140, G02B 626

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active

058646434

ABSTRACT:
The present invention provides for a miniature 1XN electromechanical optical switch which has an array of the end sections of output optical fibers, an end section of an input optical fiber and an actuator to effect a relative movement of the input optical fiber end section with respect to the output optical fiber end sections to form an optical path between the input optical fiber and a selected output optical fiber. An alignment controller controls the relative movement by the actuator through an electric current. The alignment controller effects a coarse alignment between the input optical fiber end section and the end section of the selected output optical fiber dependent upon the proportionality between the relative movement amount and the amount of electric current. A fine alignment between the input optical fiber end section and the end section of the selected output optical fiber is effected by the alignment controller responsive to a feedback signal dependent upon alignment of the input optical fiber end with the end section of the selected output optical fiber.

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Syms et al., Optical Guided Waves and Devices, McGraw-Hill Book Co., London, 1992, pp. 189-191.

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