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Fiber-optic heterodyne gyroscope using two optical beams with orthogonally polarized components

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Abstract

A novel scheme for a fiber-optic heterodyne gyroscope is proposed. This scheme produces two beat-photocurrent signals, including the Sagnac phase shift of opposite sign. The phase-difference measurement of these signals enables us to cancel their common phase factor but to obtain twice the Sagnac phase shift. The operation principle is verified experimentally.

© 1988 Optical Society of America

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