Acta Optica Sinica, Volume. 38, Issue 8, 0806001(2018)

Four-Channel Detecting Phase Demodulation φ-OTDR Based on 3×3 Michelson Interferometer

Muping Song*, Cong Yin*, Yan Lu, Weiji Zhu, Ying Wu, and Shouwang Zhuang
Author Affiliations
  • College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, China
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    References(13)

    [1] Yu K, Zhang Y S, Guan L et al. Structural state detection with twisted type fiber optic sensing array and OTDR technology[J]. Acta Optica Sinica, 19, 1530-1535(1999).

    [4] Xie K L, Rao Y J, Ran Z L. Distributed optical fiber sensing system based of Rayleigh scattering light ?-OTDR using single-mode fiber laser with high power and narrow linewidth[J]. Acta Optica Sinica, 28, 569-572(2008).

    [5] Liu S, Han X Y, Xiong Y C et al. Distributed vibration detection system based on weak fiber Bragg grating array[J]. Chinese Journal of Lasers, 44, 0210001(2017).

    [10] Cao Y L, Yang F, Xu D et al. Disturbed fiber vibration sensor based on 3×3 Michelson interferometer[J]. Chinese Journal of Lasers, 43, 1010001(2016).

    [11] Wang X, Liu M H, Yu M et al. Analysis and improvement for digital quadrature demodulation algorithm on phase-sensitive optical time-domain reflectometric system[J]. Chinese Journal of Lasers, 44, 1210002(2017).

    [12] Jiang Y, Lou Y M, Wang H W. Software demodulation for 3×3 coupler based fiber optic interferometer[J]. Acta Photonica Sinica, 27, 152-155(1998).

    [13] Healey P. Fading in heterodyne OTDR[J]. Electronics Letters, 20, 30-32(1984).

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    Muping Song, Cong Yin, Yan Lu, Weiji Zhu, Ying Wu, Shouwang Zhuang. Four-Channel Detecting Phase Demodulation φ-OTDR Based on 3×3 Michelson Interferometer[J]. Acta Optica Sinica, 2018, 38(8): 0806001

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    Paper Information

    Category: Fiber Optics and Optical Communications

    Received: Jan. 4, 2018

    Accepted: Mar. 28, 2018

    Published Online: Sep. 6, 2018

    The Author Email:

    DOI:10.3788/AOS201838.0806001

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