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Proceedings Paper

Recent developments in fiber optic ring laser gyros
Author(s): Stephen P. Smith; F. Zarinetchi; Shaoul Ezekiel
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Paper 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.

Paper Details

Date Published: 1 February 1991
PDF: 4 pages
Proc. SPIE 1367, Fiber Optic and Laser Sensors VIII, (1 February 1991); doi: 10.1117/12.24734
Show Author Affiliations
Stephen P. Smith, Massachusetts Institute of Technology (United States)
F. Zarinetchi, Massachusetts Institute of Technology (United States)
Shaoul Ezekiel, Massachusetts Institute of Technology (United States)

Published in SPIE Proceedings Vol. 1367:
Fiber Optic and Laser Sensors VIII
Ramon P. DePaula; Eric Udd, Editor(s)

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