UV-glue-assisted cascaded Fabry-Perot fiber sensor for temperature and force measurement

Xuehao Hu; Hongyu Fu; Pengcheng Li; Hang Qu; Médéric Loyez; Christophe Caucheteur

doi:10.1117/12.3017774

20 June 2024 UV-glue-assisted cascaded Fabry-Perot fiber sensor for temperature and force measurement

Xuehao Hu, Hongyu Fu, Pengcheng Li, Hang Qu, Médéric Loyez, Christophe Caucheteur

Proceedings Volume 12999, Optical Sensing and Detection VIII; 129992I (2024) https://doi.org/10.1117/12.3017774
Event: SPIE Photonics Europe, 2024, Strasbourg, France

Conference Poster

Abstract

In this work, we introduce a new concept for an in-line optical fiber temperature and force sensor, which are based on two cascaded Fabry-Perot cavities and the Vernier effect. The sensing cavity is composed of the UV glue, while the reference cavity is composed of the silica fiber. Due to the high thermo-optic coefficient and low Young's modulus of the UV glue in the sensing cavity, this sensor can be used for temperature and force measurements. The obtained temperature and force sensitivity are 8.0 nm/°C and ‒5.44×10⁴ nm/N, respectively.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Xuehao Hu, Hongyu Fu, Pengcheng Li, Hang Qu, Médéric Loyez, and Christophe Caucheteur "UV-glue-assisted cascaded Fabry-Perot fiber sensor for temperature and force measurement", Proc. SPIE 12999, Optical Sensing and Detection VIII, 129992I (20 June 2024); https://doi.org/10.1117/12.3017774

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