@inproceedings{ea538da447ad43baaefff53fbcfa5f7a,
title = "Over 100km long ultra-sensitive dynamic sensing via Gated-OFDR",
abstract = "Cumulative acoustically-induced phase modulation along the sensing fiber significantly degrades the performance of Optical Frequency Domain Reflectometry (OFDR) systems. Here we present a new method to mitigate this phenomenon using hybrid time-frequency interrogation and analysis. The method, which we term Gated-OFDR (G-OFDR), achieves remarkable results: ultra-sensitive dynamic sensing at z≈101km with 1.4m spatial resolution and acoustical sampling rate of 600Hz. As an example, the system detected and recorded, with high SNR, falls of two ~1g paperclips from height of ~20cm, on two fiber sections, 10m apart, at the end of the 101km fiber, without any crosstalk artifacts.",
keywords = "Crosstalk, Distributed acoustic sensing, Fiber optic sensors, Multiplexing, Reflectometry",
author = "Idan Steinberg and Lihi Shiloh and Haniel Gabai and Avishay Eyal",
note = "Publisher Copyright: {\textcopyright} 2015 SPIE.; 24th International Conference on Optical Fibre Sensors, OFS 2015 ; Conference date: 28-09-2015 Through 02-10-2015",
year = "2015",
doi = "https://doi.org/10.1117/12.2194873",
language = "الإنجليزيّة",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Kalinowski, {Hypolito Jose} and Fabris, {Jose Luis} and Bock, {Wojtek J.}",
booktitle = "24th International Conference on Optical Fibre Sensors, OFS 2015",
address = "الولايات المتّحدة",
}