The tilted fiber Bragg grating based on PMMA for measuring temperature and strain

Yu Ying; Qinjie Yi; Zhijun Gao

doi:10.1117/12.3049804

18 November 2024 The tilted fiber Bragg grating based on PMMA for measuring temperature and strain

Yu Ying, Qinjie Yi, Zhijun Gao

Author Affiliations +

Proceedings Volume 13398, Fourth International Conference on Optics and Communication Technology (ICOCT 2024); 1339804 (2024) https://doi.org/10.1117/12.3049804
Event: Fourth International Conference on Optics and Communication Technology (ICOCT 2024), 2024, Nanjing, China

Abstract

In this article, we propose a polymer tilted fiber grating (POTFBG) based on polymethyl methacrylate (PMMA) and study its temperature and strain sensing characteristics. Compared to traditional tilted fiber Bragg gratings, this grating exhibits superior temperature and strain sensitivity, along with excellent linearity, significantly enhancing the sensing performance of fiber Bragg gratings. Due to the material properties of PMMA, the observed peak shifts towards shorter wavelengths as the temperature increases. The data indicate that within the temperature range of 10-60°C, its sensitivity can reach -155.8 pm/°C, which is over ten times that of traditional silica single-mode tilted fiber Bragg gratings. The grating is simple to fabricate, highly sensitive, and holds great potential for development as a sensor.

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

Citation Download Citation

Yu Ying, Qinjie Yi, and Zhijun Gao "The tilted fiber Bragg grating based on PMMA for measuring temperature and strain", Proc. SPIE 13398, Fourth International Conference on Optics and Communication Technology (ICOCT 2024), 1339804 (18 November 2024); https://doi.org/10.1117/12.3049804

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