Distributed fiber optic vibration sensor with enhanced response bandwidth and high signal-to-noise ratio

Dian Chen; Qingwen Liu; Xinyu Fan; Zuyuan He

doi:10.1117/12.2265266

23 April 2017 Distributed fiber optic vibration sensor with enhanced response bandwidth and high signal-to-noise ratio

Dian Chen, Qingwen Liu, Xinyu Fan, Zuyuan He

Proceedings Volume 10323, 25th International Conference on Optical Fiber Sensors; 103237J (2017) https://doi.org/10.1117/12.2265266
Event: 25th International Conference on Optical Fiber Sensors, 2017, Jeju, Korea, Republic of

Abstract

A novel distributed fiber-optic vibration sensor (DVS) is proposed based on multi-pulse time-gated digital optical frequency domain reflectometry (TGD-OFDR), which can solve both the trade-off between the maximum measurable distance and the spatial resolution, and the one between the measurement distance and the vibration response bandwidth. A 21-kHz vibration is detected experimentally over 10-kilometer-long fiber, with a signal-to-noise ratio approaching 25 dB and a spatial resolution of 10 m.

Citation Download Citation

Dian Chen, Qingwen Liu, Xinyu Fan, and Zuyuan He "Distributed fiber optic vibration sensor with enhanced response bandwidth and high signal-to-noise ratio", Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103237J (23 April 2017); https://doi.org/10.1117/12.2265266

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