Research of disturbance detection based on a novel double Sagnac distributed fiber-optic sensor

Haiyan Xu; Yi Zhang; Yang Feng; Dong Zhao

doi:10.1117/12.863925

2 August 2010 Research of disturbance detection based on a novel double Sagnac distributed fiber-optic sensor

Haiyan Xu, Yi Zhang, Yang Feng, Dong Zhao

Proceedings Volume 7791, Interferometry XV: Applications; 77910P (2010) https://doi.org/10.1117/12.863925
Event: SPIE Optical Engineering + Applications, 2010, San Diego, California, United States

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.

Citation Download Citation

Haiyan Xu, Yi Zhang, Yang Feng, and Dong Zhao "Research of disturbance detection based on a novel double Sagnac distributed fiber-optic sensor", Proc. SPIE 7791, Interferometry XV: Applications, 77910P (2 August 2010); https://doi.org/10.1117/12.863925

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