High-temperature sensor based on an abrupt-taper Michelson interferometer in single-mode fiber

Le Xu, Lan Jiang*, Sumei Wang, Benye Li, Yongfeng Lu

*Corresponding author for this work

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Abstract

This study proposes a high-temperature sensor based on an abrupt fiber-taper Michelson interferometer (FTMI) in single-mode fiber fabricated by a fiber-taper machine and electric-arc discharge. The proposed FTMI is applied to measure temperature and refractive index (RI). A high temperature sensitivity of 118.6 pm/°C is obtained in the temperature range of 500°C-800°C. The wavelength variation is only -0.335 nm for the maximum attenuation peak, with the external RI changed from 1.333 to 1.3902, which is desirable for high-temperature sensing to eliminate the cross sensitivity to RI.

Original languageEnglish
Pages (from-to)2038-2041
Number of pages4
JournalApplied Optics
Volume52
Issue number10
DOIs
Publication statusPublished - 1 Apr 2013

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Xu, L., Jiang, L., Wang, S., Li, B., & Lu, Y. (2013). High-temperature sensor based on an abrupt-taper Michelson interferometer in single-mode fiber. Applied Optics, 52(10), 2038-2041. https://doi.org/10.1364/AO.52.002038