Phase-Conjugate Ring Gyros And Photorefractive-Biased Ring Gyros

Pochi Yeh; M. Khoshnevisan

doi:10.1117/12.943254

4 October 1984 Phase-Conjugate Ring Gyros And Photorefractive-Biased Ring Gyros

Pochi Yeh, M. Khoshnevisan

Proceedings Volume 0487, Physics of Optical Ring Gyros; (1984) https://doi.org/10.1117/12.943254
Event: Physics of Optical Ring Gyros, 1984, Snowbird, United States

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.

Citation Download Citation

Pochi Yeh and M. Khoshnevisan "Phase-Conjugate Ring Gyros And Photorefractive-Biased Ring Gyros", Proc. SPIE 0487, Physics of Optical Ring Gyros, (4 October 1984); https://doi.org/10.1117/12.943254

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