Recent progress in fast distributed Brillouin optical fiber sensing

Hongying Zhang, Dengwang Zhou, Benzhang Wang, Chao Pang, Pengbai Xu, Taofei Jiang, Dexin Ba, Hui Li, Yongkang Dong

Research output: Contribution to journalReview articlepeer-review

47 Scopus citations

Abstract

Brillouin-based optical fiber sensing has been regarded as a good distributed measurement tool for the modern large geometrical structure and the industrial facilities because it can demodulate the distributed environment information (e.g., temperature and strain) along the sensing fiber. Brillouin optical time domain analysis (BOTDA), which is an excellent and attractive scheme, has been widely developed thanks to its high performance in a signal-to-noise ratio, a spatial resolution, and sensing distance. However, the sampling rate of the classical BOTDA is severely limited by several factors (especially the serially frequency-sweeping process) so that it cannot be suitable for the quickly distributed measurement. In this work, we summarize some promising breakthroughs about the fast BOTDA, which can be named as an optical frequency comb technique, an optical frequency-agile technique, a slope-assisted technique, and an optical chirp chain technique.

Original languageEnglish
Article number1820
JournalApplied Sciences (Switzerland)
Volume8
Issue number10
DOIs
StatePublished - 4 Oct 2018
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2018 by the authors.

Funding

Funding: This work was supported by the National Key Scientific Instrument and Equipment Development Project of China (2017YFF0108700), the National Natural Science Foundation of China (61575052), and the Natural Science Foundation of Heilongjiang Province, China (QC2015087). D.Z. acknowledges the financial support from the China Scholarship Council (CSC) program (201706120112).

FundersFunder number
National Natural Science Foundation of China61575052
China Scholarship Council201706120112
Natural Science Foundation of Heilongjiang ProvinceQC2015087
National Key Scientific Instrument and Equipment Development Projects of China2017YFF0108700

    Keywords

    • Fiber optics sensors
    • Nonlinear optics, fibers
    • Scattering
    • Stimulated Brillouin

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