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

A method to reduce the short-time phase drift of optical radiation of a LiNbO 3 -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 o...

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Bibliographic Details
Published in:Technical physics letters 2020-10, Vol.46 (10), p.950-953
Main Authors: Vostrikov, E. V., Pogorelaya, D. A., Nikitenko, A. N., Aleinik, A. S.
Format: Article
Language:English
Subjects:
Circuits
Classical and Continuum Physics
Drift
Electric potential
Fiber optic gyroscopes
Fiber optics
Frequencies
Lithium niobates
Optical fibers
Optical radiation
Optics
Physics
Physics and Astronomy
Voltage
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Summary:A method to reduce the short-time phase drift of optical radiation of a LiNbO 3 -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.
ISSN:1063-7850
1090-6533
DOI:10.1134/S1063785020100156