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Fiber-Optic Gyroscope Accuracy Improvement by Suppressing the Parasitic Effects in Integrated Optic Phase Modulators

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Abstract

The results of study of a fiber-optic gyroscope prototype with 0.01–0.001deg/h drift are presented. The gyroscope comprises three feedback loops: one for Sagnac phase difference compensation, the second one for the scale factor stabilization, and the third (fast-response) one for the compensation of constant component of optical signal on the photodetector, affecting the measurement channel. To increase the accuracy of the prototype gyroscope up to the level of 0.001 deg/h, it is proposed to use the fourth and the fifth feedback loops which will suppress the parasitic effects in the integrated optic phase modulators.

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ACKNOWLEDGMENTS

The authors express their gratitude to the personnel of the Academician Kuznetsov Research Institute of Applied Mechanics: N.N. Chanov, O.K. Borisov, A.V. Sobchakov, E.A. Golyakov, I.B. Kolosunin, D.A. Tabargin and P.I. Ganyaev for their contribution in the assembly of the FOG prototype and the breadboard for the research.

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  1. Center for Operation of Space Ground Based Infrastructure, Research Institute of Applied Mechanics named after Acad. V.I. Kuznetsov, Moscow, Russia

    A. M. Kurbatov, R. A. Kurbatov & A. M. Goryachkin

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  1. A. M. Kurbatov
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  2. R. A. Kurbatov
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  3. A. M. Goryachkin
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Correspondence to A. M. Kurbatov.

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Kurbatov, A.M., Kurbatov, R.A. & Goryachkin, A.M. Fiber-Optic Gyroscope Accuracy Improvement by Suppressing the Parasitic Effects in Integrated Optic Phase Modulators. Gyroscopy Navig. 10, 256–267 (2019). https://doi.org/10.1134/S2075108719040114

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