Abstract

We describe a fiber gyroscope operating at maximum sensitivity that is due to a nonreciprocal π/2 phase bias effected with a pulsed voltage applied to an electro-optic LiNbO₃ channel waveguide phase shifter. With a He–Ne laser source, the noise was equivalent to a 0.1°/sec rotation, for a 10-Hz bandwidth and 2% reflectivity at each fiber–LiNbO₃ interface. The phase shifters showed polarization-independent behavior that was characterized by measurements in a fiber interferometer. They were flip-chip coupled with single-mode fibers that were cemented to the channel ends to give a stable module.

© 1981 Optical Society of America

Fiber resonator gyroscope: sensitivity and thermal nonreciprocity

David M. Shupe
Appl. Opt. 20(2) 286-289 (1981)

All-single-mode fiber-optic gyroscope

R. A. Bergh, H. C. Lefevre, and H. J. Shaw
Opt. Lett. 6(4) 198-200 (1981)

All-single-mode fiber-optic gyroscope with long-term stability

R. A. Bergh, H. C. Lefevre, and H. J. Shaw
Opt. Lett. 6(10) 502-504 (1981)

Closed-loop, low-noise fiber-optic rotation sensor

J. L. Davis and S. Ezekiel
Opt. Lett. 6(10) 505-507 (1981)

Nonreciprocal phase shift caused by magnetic-thermal coupling of a polarization maintaining fiber optic gyroscope

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Opt. Lett. 39(6) 1382-1385 (2014)