Traveling wave fiber optic interferometric sensor and method of

Details Traveling wave fiber optic interferometric sensor and method of Traveling wave fiber optic interferometric sensor and method of

1988-10-31

1990-05-29

Sikes, William L.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

350 9633, 350 9634, 350320, 350 9629, 356345, 356349, 356351, 250231R, 250231P, 25022719, 324 96, 427163, G02B 602, G01B 902, G01D 534, B05D 506

Patent

active

049290509

ABSTRACT:
An optical light conducting fiber that has a D-shaped stress sensitive coating of PVF.sub.2 which covers substantially equal length segments of said fiber, so that each of said segments is separated by equal uncoated segments of substantially the same length as said coated segments. The fiber when used in an interferometer provides an antenna that is capable of sensing electromagnetic and other stress-inducting waves in the environment. The optical fiber is polarized by winding it on a specially designed spool, heating it and applying a high intensity electric field in the desired direction.

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