Parallel-cascaded Mach-Zehnder interferometers fiber-optic disturbance detecting system

Xiaowei Dong

doi:10.1117/12.2606832

1 November 2021 Parallel-cascaded Mach-Zehnder interferometers fiber-optic disturbance detecting system

Xiaowei Dong

Proceedings Volume 12057, Twelfth International Conference on Information Optics and Photonics; 1205745 (2021) https://doi.org/10.1117/12.2606832
Event: Twelfth International Conference on Information Optics and Photonics, 2021, Xi'an, China

Abstract

A novel fiber sensing system for monitoring the long-haul oil/gas pipeline is proposed and experimentally verified. By measuring the time delay difference between two counter-propagating signals along one Mach-Zehnder interferometer (MZI) sensing fiber cable with length of 10.32 km, discretional disturbance is detected and located successfully with a spatial resolution ≤ 30 m. In addition, the sensitivity threshold and the protected zone range are measured to avoid arousing lots of false alarms

Citation Download Citation

Xiaowei Dong "Parallel-cascaded Mach-Zehnder interferometers fiber-optic disturbance detecting system", Proc. SPIE 12057, Twelfth International Conference on Information Optics and Photonics, 1205745 (1 November 2021); https://doi.org/10.1117/12.2606832

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