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.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
S. J. Spammer, P. L. Swart, and A. A. Chtcherbakov, “Merged Sagnac-Michelson interferometer for distributed disturbance detection,” Journal of Lightwave Technology, 1997, 15(6): 972–976.
A. A. Chtcherbakov, P. L. Swart, S. J. Spammer, and B. M. Lacquet, “Modified Sagnac/Mach-Zehnder interferometer for distributed disturbance sensing,” Microwave and Optical Technology Letters, 1999, 20(1): 34–36.
S. J. Russell, K. R. C. Brady, and J. P. Dakin, “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.
X. Hong, J. Wu, C. Zuo, F. Liu, H. Guo, and K. Xu, “Dual Michelson interferometers for distributed vibration detection,” Applied Optics, 2011, 50(22): 4333–4338.
Q. Sun, D. Liu, J. Wang, and H. Liu, “Distributed fiber-optic vibration sensor using a ring Mach-Zehnder interferometer,” Optics Communications, 2008, 281(6): 1538–1544.
X. J. Fang, “Fiber-optic distributed sensing by a two-loop Sagnac interferometer,” Optics Letters, 1996, 21(6): 444–446.
J. C. Juarez, E. W. Maier, K. N. Choi, and H. F. Taylor, “Distributed fiber-optic intrusion sensor system,” Journal of Lightwave Technology, 2005, 23(6): 2081–2087.
J. C. Juarez and H. F. Taylor, “Field test of a distributed fiber-optic intrusion sensor system for long perimeters,” Applied Optics, 2007, 46(11): 1968–1971.
Y. Dong, L. Chen, and X. Bao, “Time-division multiplexing-based BOTDA over 100 km sensing length,” Optics Letters, 2011, 36(2): 277–279.
T. Zhu, Q. He, X. Xiao, and X. Bao, “Modulated pulses based distributed vibration sensing with high frequency response and spatial resolution,” Optics Express, 2013, 21(3): 2953–2963.
M. D. Todd, M. Seaver, and F. Bucholtz, “Improved, operationally-passive interferometric demodulation method using 3×3 coupler,” Electronics Letters, 2002, 38(15): 784–786.
Acknowledgment
This work was supported by the Shandong Natural Science Foundation (No. ZR2013FL028), Science and Technology Development Project of Shandong Province (2014GGX103019), and Innovation and Achievement Transformation Projects of Shandong Province (2014ZZCX04206).
Author information
Authors and Affiliations
Corresponding author
Additional information
This article is published with open access at Springerlink.com
Rights and permissions
Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
About this article
Cite this article
Wang, C., Shang, Y., Liu, X. et al. Interferometric distributed sensing system with phase optical time-domain reflectometry. Photonic Sens 7, 157–162 (2017). https://doi.org/10.1007/s13320-016-0350-8
Received:
Revised:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s13320-016-0350-8