Single fibre control switches

Details Single fibre control switches Single fibre control switches

1990-02-22

1991-09-10

Sikes, William L.

Optical waveguides

With optical coupler

Switch

G02B 626, G02B 642

Patent

active

050468065

ABSTRACT:
A fibre optic switch which includes an actuator reversibly movable between at least two switch positions, an actuator position detector and a single optical fibre path connected between the actuator and the actuator position detector. A beam splitter is provided to couple light from a light source into the fibre so as to travel towards the actuator. A filter is selectably insertable into the path of light emanating from an end of the fibre at the actuator and a retro-reflector reflects the filtered light back to the fibre. The reflected light is directed by the beam splitter towards the actuator position detector.

REFERENCES:
patent: 4650277 (1987-03-01), Husher et al.
patent: 4863230 (1989-09-01), Webb
patent: 4892373 (1990-01-01), Sie
patent: 4919512 (1990-04-01), Flaherty

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