Recent developments in fiber optic ring laser gyros

Stephen P. Smith; F. Zarinetchi; Shaoul Ezekiel

doi:10.1117/12.24734

1 February 1991 Recent developments in fiber optic ring laser gyros

Stephen P. Smith, F. Zarinetchi, Shaoul Ezekiel

Proceedings Volume 1367, Fiber Optic and Laser Sensors VIII; (1991) https://doi.org/10.1117/12.24734
Event: SPIE Microelectronic Interconnect and Integrated Processing Symposium, 1990, San Jose, United States

Abstract

It was previosly observed (Aronowitz, 1971; Zarinetchi et al., 1989) that, in a Brillouin fiber-optic laser gyro with identical laser frequencies along the counterpropagating directions, there occur, at low rotation rates, the lock-in phenomena normally encountered in bulk-optic ring laser gyros due to backscattering. This paper presents rotation data that are free from lock-in phenomena, from a laser gyro in which the two Brillouin lasers are separated by a fixed offset at zero rotation rate. Also presented is a measurement of the beat between the two counterpropagating Brillouin lasers, which determines the ultimate performance of this gyro.

Citation Download Citation

Stephen P. Smith, F. Zarinetchi, and Shaoul Ezekiel "Recent developments in fiber optic ring laser gyros", Proc. SPIE 1367, Fiber Optic and Laser Sensors VIII, (1 February 1991); https://doi.org/10.1117/12.24734

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