Impact of the probe pulse shape on the performance of phase-sensitive optical time-domain reflectometry sensors

María R. Fernández-Ruiz; Hugo F. Martins; Juan Pastor-Graells; Sonia Martin-Lopez; Miguel Gonzalez-Herraez

doi:10.1117/12.2263848

23 April 2017 Impact of the probe pulse shape on the performance of phase-sensitive optical time-domain reflectometry sensors

María R. Fernández-Ruiz, Hugo F. Martins, Juan Pastor-Graells, Sonia Martin-Lopez, Miguel Gonzalez-Herraez

Author Affiliations +

Proceedings Volume 10323, 25th International Conference on Optical Fiber Sensors; 103236P (2017) https://doi.org/10.1117/12.2263848
Event: 25th International Conference on Optical Fiber Sensors, 2017, Jeju, Korea, Republic of

Abstract

In this communication, the effect of the probe pulse shape on the backscattered power trace of phase-sensitive (φ-) OTDR is analyzed. In particular, the power traces obtained with rectangular and Gaussian-like probe pulses are compared, both numerically and experimentally. Our analysis reveals that the use of Gaussian-like pulses can increase the operation range and sensitivity of φOTDR-based sensors in at least two-fold as compared with that obtained from traditionally-employed rectangular-like pulses.

Citation Download Citation

María R. Fernández-Ruiz, Hugo F. Martins, Juan Pastor-Graells, Sonia Martin-Lopez, and Miguel Gonzalez-Herraez "Impact of the probe pulse shape on the performance of phase-sensitive optical time-domain reflectometry sensors", Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103236P (23 April 2017); https://doi.org/10.1117/12.2263848

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