Enhancement for Φ-OTDR Performance by Using Narrow Linewidth Light Source and Signal Processing

Meng ZHANG; Song WANG; Yuanwei ZHENG; Yao YANG; Xingjie SA; Li ZHANG

doi:10.1007/s13320-015-0283-7

[1] H. Martins, S. Lopez, P. Corredera, M. Filograno, O. Frazao, and M. Herraez, “Coherent noise reduction in high visibility phase-sensitive optical time domain reflectometer for distributed sensing of ultrasonic waves,” Journal of Lightwave Technology, 2013, 31(23): 3631 3673.

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

[3] Z. Wang, J. Zeng, J. Li, M. Fan, H. Wu, F. Peng, et al., “Ultra-long phase-sensitive OTDR with hybrid distributed amplification,” Optics Letters, 2014, 39(20): 5866 .

[4] T. Zhu, X. Xiao, Q. He, and D. Diao, “Enhancement of SNR and spatial resolution in Φ-OTDR system by using two-dimensional edge detection method,” Journal of Lightwave Technology, 2013, 31(17): 2851 2856.

[5] Z. Qin, L. Chen, and X. Bao, “Wavelet denoising method for improving detection performance of distributed vibration sensor,” IEEE Photonics Technology Letters, 2012, 24(7): 542 544.

[6] L. Zhang, Z. Wang, S .Wang, N. Xue, X. Qian, M. Fan, et al., “Phase-sensitive optical time-domain reflectometry with I/Q demodulation,” in Asia Communications and Photonics Conference 2015, Hong Kong, pp. AM1I.3, 2015.

[7] Y. Koyamad, M. Imahama, K. Kubota, and K. Hogari, “Fiber-optic distributed strain and temperature sensing with very high measurand resolution over long range using coherent OTDR,” Journal of Lightwave Technology, 2009, 27(9): 1142 1146.

[8] K. Liang, Z. Pan, J. Zhou, Q. Ye, H. Cai, and R. Qu, “Multi-paramenter vibration detection system based on phase sensitive optical time domain reflectomer,” Chinese Journal of Lasers, 2012, 39(8): 080004-1 080004-5.

[9] Z. Pan, K. Liang, Q. Ye, H. Cai, R. Qu, and Z. Fang, “Phase-sensitive OTDR system based on digital coherent detection,” in Asia Communications and Photonics Conference 2011, Shanghai, pp. 83110S-1 83110S-6, 2011.