Optimal interrogation of wavelength shifts in FBG sensors utilizing a fiber Fabry-Perot etalon

Pinsheng Huang; Chuanyi Tao; Tao Guo; Jingke Li; Yufei Jiang; Jingting Wang; Mengying Li; Yubing Liu

doi:10.1117/12.2687422

27 November 2023 Optimal interrogation of wavelength shifts in FBG sensors utilizing a fiber Fabry-Perot etalon

Pinsheng Huang, Chuanyi Tao, Tao Guo, Jingke Li, Yufei Jiang, Jingting Wang, Mengying Li, Yubing Liu

Proceedings Volume 12771, Advanced Sensor Systems and Applications XIII; 127710S (2023) https://doi.org/10.1117/12.2687422
Event: SPIE/COS Photonics Asia, 2023, Beijing, China

Abstract

A fiber Fabry-Perot etalon interrogation system is proposed for dynamic signal measurement of fiber Bragg grating sensors. The system has a voltage feedback device and is designed to perform temperature control of the fiber Fabry-Perot etalon to increase the amplitude of the demodulated signal to a high level. Data acquisition system is used to form voltage feedback to control the temperature by adjusting the power of the thermoelectric cooler loaded under fiber Fabry-Perot etalon. By controlling the temperature change of the fiber Fabry-Perot etalon, it is possible to increase the amplitude of the demodulated signal and maintain it at a high threshold. The experimental results show that adaptive temperature control has good signal enhancement effect.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Pinsheng Huang, Chuanyi Tao, Tao Guo, Jingke Li, Yufei Jiang, Jingting Wang, Mengying Li, and Yubing Liu "Optimal interrogation of wavelength shifts in FBG sensors utilizing a fiber Fabry-Perot etalon", Proc. SPIE 12771, Advanced Sensor Systems and Applications XIII, 127710S (27 November 2023); https://doi.org/10.1117/12.2687422

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