Photonic Sensors, Volume. 11, Issue 1, 69(2021)

High-Performance Distributed Brillouin Optical Fiber Sensing

Yongkang DONG*
Author Affiliations
  • National Key Laboratory of Science and Technology on Tunable Laser, Harbin Institute of Technology, Harbin 150001, China
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    This paper reviews the recent advances on the high-performance distributed Brillouin optical fiber sensing, which include the conventional distributed Brillouin optical fiber sensing based on backward stimulated Brillouin scattering and two other novel distributed sensing mechanisms based on Brillouin dynamic grating and forward stimulated Brillouin scattering, respectively. As for the conventional distributed Brillouin optical fiber sensing, the spatial resolution has been improved from meter to centimeter in the time-domain scheme and to millimeter in the correlation-domain scheme, respectively; the measurement time has been reduced from minute to millisecond and even to microsecond; the sensing range has reached more than 100 km. Brillouin dynamic grating can be used to measure the birefringence of a polarization-maintaining fiber, which has been explored to realize distributed measurement of temperature, strain, salinity, static pressure, and transverse pressure. More recently, forward stimulated Brillouin scattering has gained considerable interest because of its capacity to detect mechanical features of materials surrounding the optical fiber, and remarkable works using ingenious schemes have managed to realize distributed measurement, which opens a brand-new way to achieve position-resolved substance identification.

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    Yongkang DONG. High-Performance Distributed Brillouin Optical Fiber Sensing[J]. Photonic Sensors, 2021, 11(1): 69

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    Paper Information

    Category: Review

    Received: Nov. 19, 2020

    Accepted: Dec. 15, 2020

    Published Online: May. 14, 2021

    The Author Email: DONG Yongkang (aldendong@163.com)

    DOI:10.1007/s13320-021-0616-7

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