Variable coupler fiberoptic sensor

Details Variable coupler fiberoptic sensor Variable coupler fiberoptic sensor

G - Physics

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G01J 3/46 (2006.01) G01D 5/353 (2006.01) G01L 1/24 (2006.01) G01P 15/093 (2006.01) G02B 6/28 (2006.01) G02F 1/01 (2006.01) G02F 1/313 (2006.01)

Patent

CA 1239294

ABSTRACT OF THE DISCLOSURE A variable coupler fiberoptic sensor in which a fused, tapered, biconical directional fiberoptic coupler is encapsulated in a stress birefringent medium whose index of refraction changes with applied stress. The ratio of power in the output fibers of the directional coupler varies with the change of index of refraction of the encapsulating medium as stress is applied to the medium.

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