title: Simultaneous refractive index and temperature measurements using a tapered bend-resistant fiber interferometer.
abstract: Simultaneous measurements of refractive index (RI) and temperature are proposed and experimentally demonstrated by using a tapered bend-resistant fiber interferometer. Different phase shifts of an inner and outer cladding mode of the fiber interferometer are measured to determine the temperature compensated RI of a glycerol solution. The temperature coefficients of the inner and outer cladding modes are -0.0253 rad/°C and -0.0523 rad/°C, and the RI coefficients are 4.0403 rad/RIU and 44.823 rad/RIU, respectively. The minimum errors of temperature and RI are 0.6°C and 0.001 RIU, respectively.
authors.affiliation: Fiber Optics Group, Department of Physics, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada. plu@uottawa.ca
authors.forename: Ping
authors.initials: P
authors.lastname: Lu
authors.forename: Jeremie
authors.initials: J
authors.lastname: Harris
authors.forename: Yanping
authors.initials: Y
authors.lastname: Xu
authors.forename: Yuangang
authors.initials: Y
authors.lastname: Lu
authors.forename: Liang
authors.initials: L
authors.lastname: Chen
authors.forename: Xiaoyi
authors.initials: X
authors.lastname: Bao