Temperature dependence of a refractive index sensor based on core-offset in-line fiber Mach-Zehnder interferometer

Bingcheng Wu; Haiyang Bao; Fangda Yu; Peng Xue; Jie Zheng

doi:10.1117/12.2537196

20 November 2019 Temperature dependence of a refractive index sensor based on core-offset in-line fiber Mach-Zehnder interferometer

Bingcheng Wu, Haiyang Bao, Fangda Yu, Peng Xue, Jie Zheng

Author Affiliations +

Proceedings Volume 11191, Advanced Sensor Systems and Applications IX; 111910D (2019) https://doi.org/10.1117/12.2537196
Event: SPIE/COS Photonics Asia, 2019, Hangzhou, China

Abstract

The temperature dependence of a refractive index (RI) sensor based on a core-offset in-line fiber Mach-Zehnder interferometer was investigated in order to eliminate the temperature and RI cross sensitivity caused by the thermo-optic effect. The RI sensitivity of the sensor was around -20.00 nm/RIU, and the RI correction was given for the sensor in the temperature range of 25-60℃. The experimental results showed that the temperature variation might lead to deviation in the measurement of RI, but hardly affected the RI sensitivity.

Citation Download Citation

Bingcheng Wu, Haiyang Bao, Fangda Yu, Peng Xue, and Jie Zheng "Temperature dependence of a refractive index sensor based on core-offset in-line fiber Mach-Zehnder interferometer", Proc. SPIE 11191, Advanced Sensor Systems and Applications IX, 111910D (20 November 2019); https://doi.org/10.1117/12.2537196

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