High-temperature fiber-optic Fabry-Perot interferometric sensors

Wenhui Ding, Yi Jiang, Ran Gao, Yuewu Liu
2015 Review of Scientific Instruments  
A photonic crystal fiber (PCF) based high-temperature fiber-optic sensor is proposed and experimentally demonstrated. The sensor head is a Fabry-Perot cavity manufactured with a short section of endless single-mode photonic crystal fiber (ESM PCF). The interferometric spectrum of the Fabry-Perot interferometer is collected by a charge coupled device linear array based micro spectrometer. A high-resolution demodulation algorithm is used to interrogate the peak wavelengths. Experimental results
more » ... ow that the temperature range of 1200 • C and the temperature resolution of 1 • C are achieved. C 2015 AIP Publishing LLC. [http://dx.
doi:10.1063/1.4919409 pmid:26026548 fatcat:o6w74iwncfcodnmkwvpb6wwvpm