@inproceedings{bc8856829dc145a3aa0c55c64b9475e7,
title = "High-spatial-resolution fast brillouin optical fiber sensor for distributed dynamic measurement based on differential double-pulse",
abstract = "We demonstrate a high-spatial-resolution fast Brillouin optical time-domain analysis scheme based on frequency agility and differential double-pulse for distributed dynamic measurement. The frequency-agility probe wave is obtained from the second-order sideband of the modulated light by using frequency-agility microwave signal from a wideband arbitrary waveform generator. The differential double-pulse technique is proposed to improve the spatial resolution while keeping the capability of dynamic measurement. In experiment, a spatial resolution of 20 cm is achieved by using a 52/50 ns differential double-pulse, and the distributed vibration measurement is demonstrated over a 50-m Panda fiber with a maximum vibration frequency of up to 50 Hz. With only five averages, the standard deviation of the strain accuracy is of 14 με.",
keywords = "Brillouin optical time-domain analysis, Distributed measurement, Dynamic measurement",
author = "Yongkang Dong and Taofei Jiang and Dengwang Zhou and Dexin Ba and Hongying Zhang and Zhiwei Lu and Liang Chen and Xiaoyi Bao",
year = "2013",
doi = "10.1117/12.2031472",
language = "אנגלית",
isbn = "9780819498168",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
booktitle = "Fourth Asia Pacific Optical Sensors Conference",
note = "4th Asia-Pacific Optical Sensors Conference 2013, APOS 2013 ; Conference date: 15-10-2013 Through 18-10-2013",
}