title: High-temperature sensor based on an abrupt-taper Michelson interferometer in single-mode fiber.
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.
authors.affiliation: NanoManufacturing Fundamental Research Joint Laboratory of National Science Foundation of China, School of Mechanical Engineering, Beijing Institute of Technology, Beijing, China.
authors.forename: Le
authors.initials: L
authors.lastname: Xu
authors.forename: Lan
authors.initials: L
authors.lastname: Jiang
authors.forename: Sumei
authors.initials: S
authors.lastname: Wang
authors.forename: Benye
authors.initials: B
authors.lastname: Li
authors.forename: Yongfeng
authors.initials: Y
authors.lastname: Lu