Specific Aspects of Laser Cavity Optical Path Control System and Vibrational Error of the Zeeman Laser Gyroscope Filled with 50 % Mixture of Neon Isotopes

Authors: Grushin M.E., Kolbas Yu.Yu., Gorshkov V.N. Published: 07.12.2018
Published in issue: #6(123)/2018  
DOI: 10.18698/0236-3933-2018-6-75-86

Category: Instrument Engineering, Metrology, Information-Measuring Instruments and Systems | Chapter: Navigation Instruments  
Keywords: laser gyroscope, zero drift, vibration, detuning of path control system

The article presents the results of theoretical and experimental investigation of laser cavity optical path control system and vibrational error of the Zeeman laser gyroscope (ZLG) filled with 50% mixture of neon isotopes Ne20 и Ne22. Unlike one-isotope neon, the beat frequency dependence on the optical path length takes the appearance of the asymmetric form, which leads to a change in the character of the dynamic zero drifts and errors of two-isotope neon under mechanical shocks and vibrations. The study shows that the behavior of the two-isotopic ZLG is equivalent to the single-isotopic ZLG with a static detuning. As a result, we found the dynamic drifts of zero and vibrational errors to decrease in the two-isotopic ZLG even in presence of static detuning. It is associated with more flat shape of the gain curve peak of the ZLG filled with 50% mixture of neon isotopes Ne20 and Ne22. Experimental results and estimated dynamic drifts of zero and vibration errors of two-isotopic ZLG of type K-5 are presented


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