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Proceedings Paper

Research of disturbance detection based on a novel double Sagnac distributed fiber-optic sensor
Author(s): Haiyan Xu; Yi Zhang; Yang Feng; Dong Zhao
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Paper Abstract

A novel double Sagnac distributed fiber-optic sensor based on Sagnac interferometer for determining the position of disturbance along an optical fiber is presented. The configuration and operating principle of the system is illustrated, the location principle and method for the detection system are analyzed. The system realizes the location of the disturbance using the adaptive time delay estimation with the LMS (least mean square) algorithm in the time domain. Theory analysis and experiment result show that the proposed technology can realize the detection and location of the disturb signal rapidly and effectively, this method is simply and can be obtained easily, and it has high measurement sensitivity and location precision.

Paper Details

Date Published: 2 August 2010
PDF: 6 pages
Proc. SPIE 7791, Interferometry XV: Applications, 77910P (2 August 2010); doi: 10.1117/12.863925
Show Author Affiliations
Haiyan Xu, Fudan Univ. (China)
Yi Zhang, Fudan Univ. (China)
Yang Feng, Fudan Univ. (China)
Dong Zhao, Fudan Univ. (China)


Published in SPIE Proceedings Vol. 7791:
Interferometry XV: Applications
Cosme Furlong; Christophe Gorecki; Erik L. Novak, Editor(s)

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