Abstract
The key operation of traditional Brillouin optical time-domain analysis (BOTDA) is the frequency-sweeping process to get the distributed Brillouin gain spectrum (BGS) whose central frequency (i.e. Brillouin frequency shift, BFS) has a linear relationship with the environmental information (e.g. temperature or strain) over the sensing fiber. However, this time-consuming process has limited the sampling rate of BOTDA. In this paper, we summarize several fast BOTDA systems for dynamic strain measurement which is developed by our team and refers to frequency-agile technique, slope-assisted methods and optical chirp chain technique.
© 2019 The Author(s)
PDF ArticleMore Like This
Yin Zhou, Lianshan Yan, Haijun He, Zonglei Li, Xinpu Zhang, Wei Pan, and Bin Luo
M1C.2 Optical Fiber Communication Conference (OFC) 2020
Guangyao Yang, Xinyu Fan, Bin Wang, Qingwen Liu, and Zuyuan He
AF1A.4 Asia Communications and Photonics Conference (ACP) 2016
Guangyao Yang, Xinyu Fan, Bin Wang, and Zuyuan He
s1998 Conference on Lasers and Electro-Optics/Pacific Rim (CLEO/PR) 2017