Reference for citation: Kovalenko T. G., Zenevich A. O., Zhdanovich S. V., Novikov E. V., Matkovskaуa T. A. Study of microbending parameters of single-mode optical fiber for mass sensors. Journal of Instrument Engineering. 2024. Vol. 67, N 1. P. 96—102 (in Russian). DOI: 10.17586/0021-3454-2024-67-1-96-102.

Abstract. The possibility of creating a fiber-optic mass sensor using microbends of single-mode optical fiber is investigated. It is found that for a constant value of the mass influencing the microbend, an increase in the microbend formation diameter leads to a weakening of the power of optical radiation at the microbend. An experimental setup is proposed and used to deduce that the highest sensitivity to impact mass is observed for optical fiber G 655 at all the wavelengths applied. The maximum sensitivity for optical fiber G 655 is obtained at a wavelength of 1625 nm. It is established that for mass determination with microbends of single-mode optical fiber, it is advisable to use microbends formed by a metal wire with a diameter of 200 μm, a wavelength of 1625 nm, and the G 655 optical fiber.

Keywords: microbending, single-mode optical fiber, fiber-optic sensor, optical power attenuation, mass sensor

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