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 language | English |
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Pages (from-to) | 2038-2041 |
Number of pages | 4 |
Journal | Applied Optics |
Volume | 52 |
Issue number | 10 |
DOIs | |
Publication status | Published - 1 Apr 2013 |