Two-wave method of signal reconstruction in a fiber-optic sensor based on a Fabry–Perot interferometer

Vetrov, A.A., Danilov, D.A., Komissarov, S.S., Kotsyubinskiy, T.D., Sergushichev, A.N.

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For Russian citation (Opticheskii Zhurnal):

Ветров А.А., Данилов Д.А., Комиссаров С.С., Коцюбинский Т.Д., Сергушичев А.Н. Двухволновый метод восстановления сигнала в волоконно-оптическом датчике на основе интерферометра Фабри–Перо // Оптический журнал. 2018. Т. 85. № 2. С. 55–59. http://doi.org/10.17586/1023-5086-2018-85-02-55-59

Vetrov A.A., Danilov D.A., Komissarov S.S., Kotsyubinskiy T.D., Sergushichev A.N. Two-wave method of signal reconstruction in a fiber-optic sensor based on a Fabry–Perot interferometer [in Russian] // Opticheskii Zhurnal. 2018. V. 85. № 2. P. 55–59. http://doi.org/10.17586/1023-5086-2018-85-02-55-59

For citation (Journal of Optical Technology):

A. A. Vetrov, D. A. Danilov, S. S. Komissarov, T. D. Kotsyubinskiĭ, and A. N. Sergushichev, "Two-wave method of signal reconstruction in a fiber-optic sensor based on a Fabry–Perot interferometer," Journal of Optical Technology. 85(2), 106-109 (2018). https://doi.org/10.1364/JOT.85.000106

Abstract:

A method for signal reconstruction in a fiber-optic sensor based on a Fabry–Perot interferometer, which uses two channels with different wavelengths that are selected such that the phase shift of the signals in these channels is π/2, is proposed. Examples of the applicability of the method for reconstructing signals in acoustic and vibration sensors are given. A significant increase in the dynamic range of recordable displacements in such sensors is obtained using the proposed method, compared with the single-wave version.

Keywords:

fiber optic, Fabry–Perot interferometer, vibroacoustic sensor, dynamic range

OCIS codes: 060.0060, 060.2370, 120.3180, 050.2230

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