Train detection DAS system with reduction of the backscattering interference fading effect

Ali Kabalan; Valentina Marulanda Acosta; Tarik Hammi; Gabriel Papaiz Garbini; Abdelkader Hamadi; Renaud Gabet; Yves Jaouën

doi:10.1364/SENSORS.2021.STu2B.3

OSA Optical Sensors and Sensing Congress 2021 (AIS, FTS, HISE, SENSORS, ES)
OSA Technical Digest (Optica Publishing Group, 2021),
paper STu2B.3
•https://doi.org/10.1364/SENSORS.2021.STu2B.3

Train detection DAS system with reduction of the backscattering interference fading effect

Ali Kabalan, Valentina Marulanda Acosta, Tarik Hammi, Gabriel Papaiz Garbini, Abdelkader Hamadi, Renaud Gabet, and Yves Jaouën

Optical Sensors 2021

Washington, DC United States
19–23 July 2021
ISBN: 978-1-943580-90-3

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Optical Fiber Sensors V (STu2B)

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A. Kabalan, V. M. Acosta, T. Hammi, G. P. Garbini, A. Hamadi, R. Gabet, and Y. Jaouën, "Train detection DAS system with reduction of the backscattering interference fading effect," in OSA Optical Sensors and Sensing Congress 2021 (AIS, FTS, HISE, SENSORS, ES), S. Buckley, F. Vanier, S. Shi, K. Walker, I. Coddington, S. Paine, K. Lok Chan, W. Moses, S. Qian, P. Pellegrino, F. Vollmer, G. , J. Jágerská, R. Menzies, L. Emmenegger, and J. Westberg, eds., OSA Technical Digest (Optica Publishing Group, 2021), paper STu2B.3.

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Abstract

An optical frequency modulation approach is adopted to reduce the impact of the phase- OTDR interference fading. This approach is validated by phase analysis results from train detection in a railway tunnel in Paris.

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