Novel Fiber-Optic Distributed Disturbance Sensor Using a Modified Phase Generation Carrier Technique

Abstract:

A Mach-Zehnder interferometer based fiber-optic distributed disturbance sensor (FDDS) incorporating a modified phase generation carrier (PGC) is proposed and investigated. It is found that the slow time-varying fluctuation such as temperature variation causes the location errors. By employing a modified PGC technique that satisfies the requirements including high sampling frequency and compensation of the time delay from the long length fiber, the location errors caused by the slow time-varying fluctuation can be eliminated.

• Periodical: Advanced Materials Research (Volumes 282-283)
• Pages: 697-701
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.282-283.697
• Online since: July 2011
• Authors: Wen Tai Lin, Chun Xi Zhang, Li Jing Li, Sheng Liang, Qin Li, Xiang Zhong
• Keywords: Fiber-Optic Distributed Sensor, Phase Drift, Phase Generation Carrier

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DOI: 10.1109/jlt.1987.1075587