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Using High-Frequency Noiselike Modulation for Reducing Drift Processes in a LiNbO3-Phase Modulator of a Fiber-Optic Gyroscope

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Abstract

A method to reduce the short-time phase drift of optical radiation of a LiNbO3-phase modulator of a multifunction integrated optic circuit as part of a fiber-optic gyroscope is proposed and studied. This method involves the action of a fiber-optic gyroscope with a high-frequency noiselike signal of electric voltage from 20 to 100 MHz on a phase modulator beyond the working frequency band of the fiber-optic gyroscope. Estimation of the efficiency of this method shows that an increase in the peak-to-peak voltage of the noiselike signal to 1.7 of half-wave voltages of the phase modulator makes it possible to decrease the short-time drift of the optical radiation phase by more than four times in the band of up to 64.5 kHz.

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Funding

This work was supported by the Ministry of Science and Higher Education of the Russian Federation, state order 2019-0923.

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Authors and Affiliations

  1. St. Petersburg University of Information Technologies (ITMO University), Mechanics, and Optics, 197101, St. Petersburg, Russia

    E. V. Vostrikov, D. A. Pogorelaya, A. N. Nikitenko & A. S. Aleinik

Authors
  1. E. V. Vostrikov
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  2. D. A. Pogorelaya
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  3. A. N. Nikitenko
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  4. A. S. Aleinik
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Correspondence to E. V. Vostrikov.

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The authors declare that they have no conflict of interest.

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Translated by A. Nikol’skii

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Vostrikov, E.V., Pogorelaya, D.A., Nikitenko, A.N. et al. Using High-Frequency Noiselike Modulation for Reducing Drift Processes in a LiNbO3-Phase Modulator of a Fiber-Optic Gyroscope. Tech. Phys. Lett. 46, 950–953 (2020). https://doi.org/10.1134/S1063785020100156

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  • DOI: https://doi.org/10.1134/S1063785020100156

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