[1] [1] ZOU D B, LIU H, ZHAO L, et al. Research of signal recognition of distributed optical fiber vibration sensors［J］. Laser Technology, 2016, 40(1):86-89(in Chinese).

[2] [2] XIE Sh R, ZOU Q L, TU Y J, et al. A study on real-time location method for long distance dual M-Z interferometric vibration sensor［J］. Journal of Optoelectronics·Laser, 2009, 20(8):1020-1024(in Chinese).

[3] [3] LIU B, YANG Y F, ZHANG J, et al. A fiber fence system based on M-Z interferometer［J］. Acta Photonica Sinica, 2007, 36(6):1013-1017(in Chinese).

[4] [4] CHEN W M, WU J, TAN J, et al. Locating technology for twin Mach-Zehnder distributed optical fiber sensing system［J］.Acta Optica Sinica, 2007, 27 (12) :2128-2132 (in Chinese).

[5] [5] ZHANG Y, CHEN J M, LI G, et al. Locatin method of distributed fiber-optic perimeter security system based on Mach-Zehnder interfe-rometer［J］. Chinese Journal of Lasers, 2012, 39(6):605005(in Chinese).

[6] [6] YANG Sh Zh, ZHANG Zh Y, SHAO L Y, et al. A quadratic correlation method for vibration localization based on dual M-Z fiber sensor［J］. Acta Photonica Sinica, 2017, 46(7):706004(in Chinese).

[7] [7] CHEN Q N, LIU T G, LIU K, et al. A positioning algorithm based on super-resolution time delay estimation in dual Mach-Zehnder interferometry disturbance sensor［J］.Proceedings of the SPIE, 2014, 9274:92740U.

[8] [8] LIN W T, LOU Sh Q, LIANG Sh. A modified phase generation carrier technique for fiber-optic distributed disturbance sensor［J］. Optik—International Journal for Light and Electron Optics, 2014, 125(3):942-945.

[9] [9] SUN Q Zh, LIU D M, WANG J, et al. Distributed fiber-optic vibration sensor using a ring Mach-Zehnder interferometer［J］. Optics Communications, 2008, 281(6):1538-1544.

[10] [10] CHEN Q N, LIU T G, LIU K, et al. An Improved positioning algorithm with high precision for dual Mach-Zehnder interferometry disturbance sensing system［J］. Journal of Lightwave Technology, 2015, 33(10):1954-1960.

[11] [11] AN Y, FENG H, ZHOU Y, et al. A control method to eliminate polarization-induced Phase distortion in dual Mach-Zehnder fiber interferometer［C］// Ukacc International Conference on Control. New York, USA: IEEE, 2012:988-991.

[12] [12] CHEN Q N, LIU T G, LIU K, et al. An elimination method of polarization-induced phase shift and fading in dual Mach-Zehnder interferometry disturbance sensing system［J］. Journal of Lightwave Technology, 2013, 31(19):3135-3141.

[13] [13] JIANG J Sh, JIANG Y, LIU D, et al. Fiber-optic perimeter security system based on dual Mach-Zehnder interferometer structure［J］. Optical Technique, 2015, 41(3):193-196(in Chinese).

[14] [14] JIN J, LIANG D K, ZENG J, et al. Study on distributed fiber-optic detecting system based on Mach-Zehnder interferometer［J］. Optoelectronic Technology, 2013, 33(3): 160-163(in Chinese).

[15] [15] WANG M Y, SHENG L, TAO Y, et al. Effect of laser linewidth on characteristics of -OTDR system［J］. Laser Technology, 2016, 40(4):615-618(in Chinese).

[16] [16] SHI Y L, ZHANG Y, SUN L J. Influence of lasers on phase noise of optoelectronic oscillators［J］. Laser Technology, 2015, 39(6):761-764(in Chinese).

[17] [17] CHEN Q N. Research on key technologies of dual Mach-Zehnder distributed vibration sensing system［D］. Tianjin: Tianjin University, 2015:23-26(in Chinese).

[18] [18] JIN J. Research of distributed fiber optic cable detection system based on the structure of Mach-Zehnder［D］.Nanjing: Nanjing University of Aeronautics and Astronautics,2013:29-32(in Chinese).

[19] [19] LIU F, XIE SH R, QIU X K, et al. Efficient common-mode noise suppression for fiber-optic interferometric sensor using heterodyne demodulation［J］. Journal of Lightwave Technology, 2016, 34(23):5453-5461.

[20] [20] LI R, LIANG Sh, XIAO W. A low cost design to eliminate polarization induced phase shift for dual Mach-Zehnder fiber interferometer［J］. Proceedings of the SPIE, 2015, 9656:965609.

[21] [21] HUANG W W. Research on polarization control technology in distributed optical fiber fence protection system［D］. Chengdu: Southwest Jiaotong University Master Degree Thesis, 2016:16-17(in Ch-inese).

[22] [22] CHEN X G. A new type of fiber-optic interferometer with high sensitivity and common mode compensation［J］. Acta Photonica Sinica, 1992, 12 (2):188-192(in Chinese).