A method to estimate the thermal sensitivity coefficient of a fiber-optic gyroscope loop

Pogudin G.К., Aleynik, А.S., Nikitenko A.N., Artser I.R., Strigalev, V.E., Oshlakov V.S., Volkovskii S.A., Smirnov D.S., Kublanova I.L.

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For Russian citation (Opticheskii Zhurnal):

Погудин Г.К., Алейник А.С., Никитенко А.Н., Арцер И.Р., Стригалёв В.Е., Ошлаков В.С., Волковский С.А., Смирнов Д.С., Кубланова И.Л. Метод определения коэффициента температурной чувствительности контура волоконно-оптического гироскопа // Оптический журнал. 2024. Т. 91. № 8. С. 35–49. http://doi.org/10.17586/1023-5086-2024-91-08-35-49

Pogudin G.K., Aleinik A.S., Nikitenko A.N., Artser I.R., Strigalev V.E., Oshlakov V.S., Volkovskii S.A., Smirnov D.S., Kublanova I.L. A method to estimate the thermal sensitivity coefficient of a fiber-optic gyroscope loop [in Russian] // Opticheskii Zhurnal. 2024. V. 91. № 8. P. 35–49. http://doi.org/10.17586/1023-5086-2024-91-08-35-49

For citation (Journal of Optical Technology):

Abstract:

Subject of study. The thermal sensitivity coefficient of a fiber-optic gyroscope loop. Aim of study. The aim is to establish and verify a method for determining the mechanical and optical components of the temperature coefficient of the scale factor in a fiber-optic gyroscope. Method. An algorithm for determining the temperature coefficient of the scale factor in a fiber-optic gyroscope experimentally and a computational method for calculating the temperature coefficient of the fiber loop are used. Main results. A method for determining the thermal sensitivity coefficient of the fiber loop in a fiber-optic gyroscope has been developed. The dependency between the temperature coefficient of the scale factor in a fiber-optic gyroscope, the temperature coefficient of the central wavelength spectrum output radiation of an erbium-doped superluminescent fiber source, and the temperature coefficient of the fiber loop in a fiber-optic gyroscope has been experimentally confirmed. Practical significance. The findings of this research can be utilized to develop a testing setup and procedure for assessing the temperature coefficients of fiber loops for further selection or categorization during fiber-optic gyroscopes manufacturing, switching emission source parameters to match specific fiber loop characteristics for temperature coefficient compensation, and consideration of the temperature coefficient value of the fiber loop for its structural minimization as a result of the development and prototyping of novel fiber loop designs.

Keywords:

fiber-optic gyroscope, fiber-optic gyroscope loop, thermal sensitivity coefficient, fiberoptic gyroscope scale factor, erbium-doped superluminescent fiber source

Acknowledgements:

the authors express their gratitude to Concern CSRI Elektropribor, JSC for providing access to equipment for carrying out measurements. The research was carried out within the state assignment of Ministry of Science and Higher Education of the Russian Federation (Project № FSER-2024-0006).

OCIS codes: 120.0120, 120.5790, 060.2800

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