Interferometric distributed sensing system with phase optical time-domain reflectometry

Chen Wang; Ying Shang; Xiaohui Liu; Chang Wang; Hongzhong Wang; Gangding Peng

doi:10.1007/s13320-016-0350-8

Photonic Sensors ›› 2016, Vol. 7 ›› Issue (2) : 157 -162. DOI: 10.1007/s13320-016-0350-8

Regular

Interferometric distributed sensing system with phase optical time-domain reflectometry

Author information +

History +

PDF

Abstract

We demonstrate a distributed optical fiber sensing system based on the Michelson interferometer of the phase sensitive optical time domain reflectometer (φ-OTDR) for acoustic measurement. Phase, amplitude, frequency response, and location information can be directly obtained at the same time by using the passive 3×3 coupler demodulation. We also set an experiment and successfully restore the acoustic information. Meanwhile, our system has preliminary realized acoustic-phase sensitivity around −150 dB (re rad/μPa) in the experiment.

Keywords

Fiber optics sensors / Rayleigh scattering / optical time domain reflectometry / interferometry

Cite this article

Download citation ▾

Chen Wang, Ying Shang, Xiaohui Liu, Chang Wang, Hongzhong Wang, Gangding Peng. Interferometric distributed sensing system with phase optical time-domain reflectometry. Photonic Sensors, 2016, 7(2): 157-162 DOI:10.1007/s13320-016-0350-8

登录浏览全文

4963

注册一个新账户忘记密码

References

Publishing order | Descend order by publishing year | Descend order by cited within

[1]	Spammer S. J., Swart P. L., Chtcherbakov A. A.. Merged Sagnac-Michelson interferometer for distributed disturbance detection. Journal of Lightwave Technology, 1997, 15(6): 972-976.

[2]	Chtcherbakov A. A., Swart P. L., Spammer S. J., Lacquet B. M.. Modified Sagnac/Mach-Zehnder interferometer for distributed disturbance sensing. Microwave and Optical Technology Letters, 1999, 20(1): 34-36.

[3]	Russell S. J., Brady K. R. C., Dakin J. P.. Real-time location of multiple time-varying strain disturbances acting over a 40 km fiber section using a novel dual-Sagnac interferometer. Journal of Lightwave Technology, 2001, 19(2): 205-213.

[4]	Hong X., Wu J., Zuo C., Liu F., Guo H., Xu K.. Dual Michelson interferometers for distributed vibration detection. Applied Optics, 2011, 50(22): 4333-4338.

[5]	Sun Q., Liu D., Wang J., Liu H.. Distributed fiber-optic vibration sensor using a ring Mach-Zehnder interferometer. Optics Communications, 2008, 281(6): 1538-1544.

[6]	Fang X. J.. Fiber-optic distributed sensing by a two-loop Sagnac interferometer. Optics Letters, 1996, 21(6): 444-446.

[7]	Juarez J. C., Maier E. W., Choi K. N., Taylor H. F.. Distributed fiber-optic intrusion sensor system. Journal of Lightwave Technology, 2005, 23(6): 2081-2087.

[8]	Juarez J. C., Taylor H. F.. Field test of a distributed fiber-optic intrusion sensor system for long perimeters. Applied Optics, 2007, 46(11): 1968-1971.

[9]	Dong Y., Chen L., Bao X.. Time-division multiplexing-based BOTDA over 100 km sensing length. Optics Letters, 2011, 36(2): 277-279.

[10]	Zhu T., He Q., Xiao X., Bao X.. Modulated pulses based distributed vibration sensing with high frequency response and spatial resolution. Optics Express, 2013, 21(3): 2953-2963.

[11]	Todd M. D., Seaver M., Bucholtz F.. Improved, operationally-passive interferometric demodulation method using 3×3 coupler. Electronics Letters, 2002, 38(15): 784-786.