Temperature sensor by using alcohol-filled side-hole fiber based Sagnac interferometer

Yi Xin; Xinyong Dong; Qingqiang Meng; Chunliu Zhao; Yongxing Jin; Shangzhong Jin

doi:10.1117/12.970497

7 November 2012 Temperature sensor by using alcohol-filled side-hole fiber based Sagnac interferometer

Yi Xin, Xinyong Dong, Qingqiang Meng, Chunliu Zhao, Yongxing Jin, Shangzhong Jin

Proceedings Volume 8421, OFS2012 22nd International Conference on Optical Fiber Sensors; 84217T (2012) https://doi.org/10.1117/12.970497
Event: OFS2012 22nd International Conference on Optical Fiber Sensor, 2012, Beijing, China

Abstract

A temperature sensor by using an alcohol-filled side-hole fiber (SHF) based Sagnac interferometer is proposed and experimentally demonstrated. The alcohol liquid is filled into air holes of the SHF. Due to its temperature-dependent refractive index, interference pattern of the Sagnac interferometer shifts at sensitivity of 86.1 pm/°C when temperature is changed in a range between 20°C and 70°C.

Citation Download Citation

Yi Xin, Xinyong Dong, Qingqiang Meng, Chunliu Zhao, Yongxing Jin, and Shangzhong Jin "Temperature sensor by using alcohol-filled side-hole fiber based Sagnac interferometer", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 84217T (7 November 2012); https://doi.org/10.1117/12.970497

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