Open AccessHigh temperature strain sensing with alumina ceramic derived fiber based Fabry-Perot interferometer
Author(s) -
Z Wang,
H Liu,
Zhongjun Ma,
Zi-hao Chen,
T Wang
Publication year - 2019
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.27.027691
Subject(s) - materials science , fabry–pérot interferometer , interferometry , ceramic , fiber optic sensor , optical fiber , fusion splicing , optics , wavelength , temperature measurement , single mode optical fiber , composite material , fiber , optoelectronics , physics , quantum mechanics
A Fabry-Perot interferometer (FPI) based on an alumina ceramic derived fiber (CDF) is proposed and demonstrated for high temperature strain sensing. The strain sensor is constructed by splicing a piece of CDF between two standard single-mode fibers (SMFs). The strain properties of the sensor are investigated from room temperature to 1200 °C. Experimental results show that the wavelength shift of the CDF-FPI presents a linear relationship with the tensile strain at both room temperature and high temperature with up to 1000 °C. The strain sensitivity is calculated to be 1.5 pm/µɛ at 900 °C, and the linear response is repeatable within 0-3000 µɛ. Moreover, for each applied force at 1000 °C, the wavelength shift versus time shows the stability of the developed CDF-FPI sensor within 0-2000 µɛ. The obtained results show that such a CDF-FPI has potential application in various engineering areas, such as aeronautics, metallurgy, and gas boiler.