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Proceedings Paper

Four-port microfiber long-period grating sensors
Author(s): Li-Peng Sun; Jie Li; Long Jin; Bai-Ou Guan
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Paper Abstract

We demonstrate four-port long-period gratings formed by winding an optical microfiber with another thinner microfiber. The surrounding thinner microfiber not only induces a strong refractive-index perturbation in the center microfiber, but also collects and leads out the light resonantly coupled from the fundamental mode to high-order modes, providing flexibility for applications as optical filters and sensors. The devices exhibit temperature sensitivity of 7.6 pm/°C, strain sensitivity of -10.6 pm/μ(epsilon) and refractive-index sensitivity of 2012.6 nm/RIU.

Paper Details

Date Published: 20 May 2013
PDF: 4 pages
Proc. SPIE 8794, Fifth European Workshop on Optical Fibre Sensors, 879421 (20 May 2013); doi: 10.1117/12.2025998
Show Author Affiliations
Li-Peng Sun, Jinan Univ. (China)
Jie Li, Jinan Univ. (China)
Long Jin, Jinan Univ. (China)
Bai-Ou Guan, Jinan Univ. (China)


Published in SPIE Proceedings Vol. 8794:
Fifth European Workshop on Optical Fibre Sensors
Leszek R. Jaroszewicz, Editor(s)

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