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Optical Engineering

Optical fiber sensor for tensile and compressive strain measurements by white-light Fabry–Perot interferometry
Author(s): Shaoji Jiang; Bin Zeng; Youncheng Liang; Baojun Li
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Paper Abstract

Based on the theory of optical fiber coupling and Fabry–Perot interference, a model of extrinsic Fabry–Perot interferometric (EFPI) optical fiber sensor for measuring strain is analyzed, and the theoretical model is demonstrated. A formula of white-light interfered EFPI optical fiber strain sensor is obtained. The system of the optical fiber sensor is designed using an LED source as light source to obtain reflected spectrum. The experimental results show that it coincides well with the computational simulation of theoretical model, which means the model is accurate.

Paper Details

Date Published: 1 March 2007
PDF: 6 pages
Opt. Eng. 46(3) 034402 doi: 10.1117/1.2714943
Published in: Optical Engineering Volume 46, Issue 3
Show Author Affiliations
Shaoji Jiang, Sun Yat-Sen Univ. (China)
Bin Zeng, Sun Yat-Sen Univ. (China)
Youncheng Liang, Sun Yat-Sen Univ. (China)
Baojun Li, Sun Yat-Sen Univ. (China)

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