Enhancement of a refractive index sensitivity by thinned the diameter of a plastic optical fiber assisted by a long period grating

Gang Liu; Haiyang Bao; Bonan Kang; Jie Zheng

doi:10.1117/12.3035892

20 November 2024 Enhancement of a refractive index sensitivity by thinned the diameter of a plastic optical fiber assisted by a long period grating

Gang Liu, Haiyang Bao, Bonan Kang, Jie Zheng

Author Affiliations +

Proceedings Volume 13243, Advanced Sensor Systems and Applications XIV; 132430U (2024) https://doi.org/10.1117/12.3035892
Event: SPIE/COS Photonics Asia, 2024, Nantong, Jiangsu, China

Conference Poster

Abstract

A plastic optical fiber (POF) assisted by a corrugated surface long period grating (LPG) was proposed as a refractive index (RI) sensor, and the LPG was fabricated on a POF by a simple mechanical die press print method. An influence of the diameter of a POF assisted by an LPG to the RI sensitivity was investigated. A ray theory of geometric optics was used to simulate the LPG based RI sensors, and theoretical and experimental results showed that the RI sensing performance of the LPG could be effectively improved by flattening the POF for thinned it in one dimension, or drawing the POF for thinned it in two dimensions.

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

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Gang Liu, Haiyang Bao, Bonan Kang, and Jie Zheng "Enhancement of a refractive index sensitivity by thinned the diameter of a plastic optical fiber assisted by a long period grating", Proc. SPIE 13243, Advanced Sensor Systems and Applications XIV, 132430U (20 November 2024); https://doi.org/10.1117/12.3035892

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