@inproceedings{bbabeca0cb674f41a4e6076f706fcd31,
title = "Distributed fiber optic perturbation locating sensor based on Dual-Mach-Zehnder interferometer",
abstract = "This paper studies a distributed fiber optic perturbation locating sensor used for security system, which is based on dual Mach-Zehnder interferometers. This system consists of two Mach-Zehnder interferometers with the common sensing arm, reference arm, two couplers and one laser source. This kind of distributed fiber optic perturbation locating sensor is very suitable for the measurement of the phase shift induced by some perturbation such as strain and vibration. When perturbation exerts on the sensing arm, a time delay will generate between the two output signals of the dual Mach-Zehnder interferometers. From the time delay, the location of the perturbation can be obtained. Experimenting on the type disturbance's optic cable and forcing on the 18.46km long distance fiber, the system correctly shows the position for real time and the average error is 390m. The experiment shows that the system can be applicable for locating on 40km distance fiber cable when the power of the laser resource increases to 300μW.",
keywords = "Distributed optic fiber sensor, Location, Mach-Zehnder interferometer, Perturbation",
author = "Guangming Luo and Chunxi Zhang and Lijing Li and Zongfeng Ma and Tian Lan and Chen Li and Wentai Lin",
year = "2008",
doi = "10.1117/12.790814",
language = "English",
isbn = "9780819467645",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
booktitle = "International Symposium on Photoelectronic Detection and Imaging 2007 - Laser, Ultraviolet, and Terahertz Technology",
note = "International Symposium on Photoelectronic Detection and Imaging 2007 - Laser, Ultraviolet, and Terahertz Technology ; Conference date: 09-09-2007 Through 12-09-2007",
}