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Proceedings Paper

Phase-Conjugate Ring Gyros And Photorefractive-Biased Ring Gyros
Author(s): Pochi Yeh; M. Khoshnevisan
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Paper Abstract

We consider two types of ring gyro operation which are designed to reduce the lock-in threshold and to bias the gyro away from the dead band, respectively. In the phase-conjugate ring gyro, the two lasing modes are coherently coupled and mutually phase-conjugated. The coherent phase relationship between the two modes provides the basis for resisting the frequency pulling due to backscattering. In the photorefractive-biased ring laser gyro, the nonreciprocal optical transmission leads to a split in both oscillation frequency and intensity. This splitting provides the bias for operation away from the dead zone.

Paper Details

Date Published: 4 October 1984
PDF: 8 pages
Proc. SPIE 0487, Physics of Optical Ring Gyros, (4 October 1984); doi: 10.1117/12.943254
Show Author Affiliations
Pochi Yeh, Consultant (United States)
M. Khoshnevisan, Consultant (United States)

Published in SPIE Proceedings Vol. 0487:
Physics of Optical Ring Gyros
Stephen F. Jacobs; Joseph E. Killpatrick; Virgil E. Sanders; Murray Sargent; Marlan O. Scully; James H. Simpson, Editor(s)

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