This article is cited in 1 paper

Lasers, control of laser radiation parameters

Possibility of reducing nonlinear distortions of a frequency response of a gas ring laser with a periodic alternating frequency bias

I. I. Zolotoverkh, E. G. Lariontsev

Lomonosov Moscow State University, Skobeltsyn Institute of Nuclear Physics

Abstract: We report a theoretical study of the dependence of the beat frequency of counterpropagating waves on the rotation velocity in a gas ring laser with a periodic alternating frequency bias. Rectangular biases of two types are considered: with constant amplitude and with periodic amplitude modulation. We have found dynamic zones for locking-in the counterpropagating wave frequencies and determined deviations of the frequency response from the ideal one that arise when measuring frequency nonreciprocities, close in magnitude to the amplitude of an alternating frequency bias. It is shown that in the case of a rectangular bias with periodic amplitude modulation, nonlinear distortions of the frequency response can be reduced by an order of magnitude.

Keywords: ring laser, laser gyroscope, frequency bias, dynamic lock-in zones, frequency response.

Received: 23.11.2019
Revised: 13.01.2020

 English version: Quantum Electronics, 2020, 50:5, 493–495

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