Sagnac-type optical fiber gyroscope having depolarizers of diffe

Optics: measuring and testing – By dispersed light spectroscopy – Utilizing a spectrometer

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G01C 1972

Patent

active

053473540

ABSTRACT:
A sagnac-type fiber optic gyroscope in which depolarizers are connected to both ends of the fiber coil and are then connected with the outputs of a 3.times.3 directional coupler.

REFERENCES:
patent: 4653917 (1987-03-01), Moeller et al.
patent: 4712306 (1987-12-01), Cahill et al.
patent: 4944590 (1990-07-01), Poisel et al.

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