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Proceedings Paper

Fiber-optic intrinsic Fabry-Perot interferometric sensors fabricated by femtosecond lasers
Author(s): Tingyun Wang; Wenyuan Wang; Na Chen; Fufei Pang
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Paper Abstract

A fiber-optic intrinsic Fabry-Perot interferometric (IFPI) sensor was fabricated in single-mode fiber using femtosecond (fs) laser. The fs laser was directly focused into the fiber core to form a local mirror by inducing the refractive index (RI) changes, and the F-P sensor was composed of two local mirrors and the fiber cavity between them. The measured spectrum has a high fringe visibility up to 10 dB. The temperature sensing characteristics of the F-P sensor were studied. Experiment results show that the reflection spectrum linearly shifts against the temperature with the sensitivity of 10.6pm/°C.

Paper Details

Date Published: 14 May 2011
PDF: 6 pages
Proc. SPIE 8034, Photonic Microdevices/Microstructures for Sensing III, 80340I (14 May 2011); doi: 10.1117/12.887958
Show Author Affiliations
Tingyun Wang, Shanghai Univ. (China)
Wenyuan Wang, Shanghai Univ. (China)
Hebei United Univ. (China)
Na Chen, Shanghai Univ. (China)
Fufei Pang, Shanghai Univ. (China)


Published in SPIE Proceedings Vol. 8034:
Photonic Microdevices/Microstructures for Sensing III
Hai Xiao; Xudong Fan; Anbo Wang, Editor(s)

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