Zhengyu Huang Virginia Polytechnic Institute and State Univ. (United States) Wei Peng Arizona State Univ. (United States) Juncheng Xu,Gary R. Pickrell,Anbo Wang Virginia Polytechnic Institute and State Univ. (United States)
We describe a fiber optic extrinsic Fabry-Perot interferometer (EFPI) based temperature sensor that incorporates a pressure isolation fixture. The sensor has high temperature sensitivity and low pressure-induced crosstalk. The detailed analysis and discussion of the sensor design, the signal demodulation algorithm, and the sensor fabrication as well as the sensor performance are presented.