Optical switch capable of detecting switching operation

Details Optical switch capable of detecting switching operation Optical switch capable of detecting switching operation

1997-12-01

1999-09-28

Palmer, Phan T. H.

Optical waveguides

With optical coupler

Switch

385 16, 385 22, 385 26, 385 47, G02B 626

Patent

active

059601345

ABSTRACT:
To know an optical path switching error, a stepping motor is rotated at a predetermined angular step so as to couple an optical fiber collimator attached to its rotating shaft to an optical fiber collimator of optical fiber collimators that is designated by a designation signal. The direction of the optical axis of the optical fiber collimator is detected by a slit disk attached to the rotating shaft, and sensors for detecting slit arrays formed in the slit disk. Detection signals from the sensors are determined to correspond to the designation signal.

REFERENCES:
patent: 5278692 (1994-01-01), Delapierre
patent: 5420946 (1995-05-01), Tsai
patent: 5664034 (1997-09-01), Mock

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