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Proceedings Paper

Multiplexed optical fiber extrinsic Fabry-Perot interferometric sensor system
Author(s): Zhenguo Jing; Qingxu Yu
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Paper Abstract

In this paper, a multiplexed optical fiber extrinsic Fabry-Perot interferometric (EFPI) sensor system with optical switch is implemented. To obtain the absolute length of the EFPI air gap, a cross-correlation signal processing method is introduced. The multiplexing of the sensors is basically based on a 1×N optical switch directly connected to a N-element EFPI sensor array. The EFPI sensors are interrogated one after the other with the same spectrometer by activating the corresponding channel of the optical switch. A multiplexed sensor system prototype with two EFPI sensors is demonstrated to verify the performance of the multiplexing method.

Paper Details

Date Published: 20 January 2006
PDF: 5 pages
Proc. SPIE 6027, ICO20: Optical Information Processing, 60274A (20 January 2006);
Show Author Affiliations
Zhenguo Jing, Dalian Univ. of Technology (China)
Qingxu Yu, Dalian Univ. of Technology (China)

Published in SPIE Proceedings Vol. 6027:
ICO20: Optical Information Processing
Yunlong Sheng; Songlin Zhuang; Yimo Zhang, Editor(s)

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