Fiber optic interferometric circuit and magnetic field sensor

Optics: measuring and testing – By particle light scattering – With photocell detection

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356351, G01B 902

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active

056443978

ABSTRACT:
A number of optical interferometric sensor configurations are provided. The interferometric sensors include a polarization maintaining optic fiber forming either a loop or linear optical path. Circularly polarized light propagate along the optical path and pass through a field-sensitive sensing medium. A differential phase shift induced in the light waves by a magnetic field is then detected by a photodetector and associated signal processing electronics.

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