V. N. Gorshkov, M. E. Grushin, E. G. Lariontsev, I. I. Saveliev, N. I. Khokhlov, “Frequency response of a gas ring laser with a variable-sign frequency bias in the case of frequency nonreciprocity comparable with the bias amplitude”, Kvantovaya Elektronika, 2016, Volume 46, Number 11,Pages <nobr>1061

This article is cited in 7 papers

Laser Gyroscopes

Frequency response of a gas ring laser with a variable-sign frequency bias in the case of frequency nonreciprocity comparable with the bias amplitude

V. N. Gorshkov^a, M. E. Grushin^a, E. G. Lariontsev^b, I. I. Saveliev^a, N. I. Khokhlov^a

^a Polyus Research and Development Institute named after M. F. Stel'makh, Moscow
^b Lomonosov Moscow State University, Skobeltsyn Institute of Nuclear Physics

Abstract: The dependence of the beat frequency of counterpropagating waves on the rotation rate is studied theoretically and experimentally in a gas ring laser (GRL) with a Zeeman effect-based, variable-sign frequency bias. Use is made of magneto-optical biases of two types, namely, a rectangular (meander) bias and a combined bias consisting of fast and slow meanders. At high rotation rates, when the frequency nonreciprocity determined by the rotation rate is close in magnitude to the amplitude of the variable-sign frequency bias, the dynamic locking bands take maximum values and there arise the most extensive deviations of the frequency response from the ideal response. Comparison of experimental and theoretical results for the widths of dynamic bands that appear in this region of the measured rotation rates shows good agreement between theory and experiment. The results suggest that the frequency response of a GRL in this region can be described by one differential equation for the phase difference of counterpropagating waves.

Keywords: ring laser, Zeeman effect, laser gyro, magneto-optic bias, dynamic locking bands, frequency response.

Received: 05.07.2016
Revised: 27.09.2016