Time-gated chaotic Brillouin optical correlation domain analysis | Zendy

Jianzhong Zhang | Zendy; Yahui Wang | Zendy; Mingjiang Zhang | Zendy; Qian Zhang | Zendy; Mengwen Li | Zendy; Chenyu Wu | Zendy; Lijun Qiao | Zendy; Yuncai Wang | Zendy

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Time-gated chaotic Brillouin optical correlation domain analysis

Author(s) -

Jianzhong Zhang,

Yahui Wang,

Mingjiang Zhang,

Qian Zhang,

Mengwen Li,

Chenyu Wu,

Lijun Qiao,

Yuncai Wang

Publication year - 2018

Publication title -

optics express

Language(s) - Uncategorized

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.26.017597

Subject(s) - optics , autocorrelation , brillouin zone , brillouin scattering , chaotic , physics , time domain , image resolution , standard deviation , frequency domain , range (aeronautics) , optical fiber , materials science , computer science , mathematics , statistics , artificial intelligence , composite material , computer vision

A new technology for chaotic Brillouin optical correlation domain analysis (BOCDA) has been proposed and experimentally demonstrated with high spatial resolution. However, the off-peak amplification induced by the chaotic autocorrelation sidelobes limits the measurement range of chaotic BOCDA system. The time-gated scheme is introduced to suppress the off-peak amplification. With the pump pulse of 120 ns duration, the time-gated chaotic BOCDA has been experimentally achieved with a 9 cm spatial resolution over a 10.2 km measurement range. The standard deviation in the local Brillouin frequency shift is ± 1.8 MHz.

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