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Proceedings Paper

A coarse wavelength-division-multiplexed extrinsic fiber Fabry-Perot sensor system
Author(s): C. X. Zhou; Yun-Jiang Rao; Jian Jiang
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Paper Abstract

In this paper, a novel method for multiplexing extrinsic fiber Fabry-Perot interferometric sensors (EFPIs) using the coarse wavelength-division-multiplexing technology (CWDM) is proposed and demonstrated, for the first time to our knowledge. The system and principle for sensing and multiplexing are described. A 1×4 CWDM is used to multiplex signals from four EFPIs with identical cavity length. The experimental results show that a strain accuracy of 2.5me is achieved. There is little cross-talk between adjacent sensor channels. This system improves the multiplexing capability of EFPIs by a factor of four. It is anticipated that such a sensor system could find important applications in smart materials and health monitoring for large structures.

Paper Details

Date Published: 14 February 2005
PDF: 6 pages
Proc. SPIE 5634, Advanced Sensor Systems and Applications II, (14 February 2005); doi: 10.1117/12.580736
Show Author Affiliations
C. X. Zhou, Chongqing Univ. (China)
Yun-Jiang Rao, Chongqing Univ. (China)
Jian Jiang, Chongqing Univ. (China)

Published in SPIE Proceedings Vol. 5634:
Advanced Sensor Systems and Applications II
Yun-Jiang Rao; Osuk Y. Kwon; Gang-Ding Peng, Editor(s)

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