[1] Hu J, Xia L, Yang L, et al. Strain-induced vibration and temperature sensing BOTDA system combined frequency sweeping and slope-assisted techniques［J］. Optics Express, 2016, 24(12): 13610-13620.

[2] Cao Shan, He Xiangge, Zhang Min. Vector theory of simultaneous gain and loss stimulated Brillouin scattering and its simulation［J］. Chinese J Lasers, 2015, 42(8): 0808001.

[3] Cui Q, Pamukcu S, Lin A, et al. Distributed temperature sensing system based on Rayleigh scattering BOTDA［J］. IEEE Sensors Journal, 2011, 11(2): 399-403.

[4] Nikles M, Thévenaz L, Robert P A. Simple distributed fiber sensor based on Brillouin gain spectrum analysis［J］. Optics Letters, 1996, 21(10): 758-760.

[5] Cui Q, Pamukcu S, Xiao W, et al. Distributed fiber sensor based on modulated pulse base reflection and Brillouin gain spectrum analysis［J］. Applied Optics, 2009, 48(30): 5823-5828.

[7] Zhang X P, Hu J H, Zhang Y X. A hybrid single-end-access BOTDA and COTDR sensing system using heterodyne detection［J］. Journal of Lightwave Technology, 2013, 31(12): 1954-1959.

[8] Wang Jü, Liu Yin, Zhang Weijuan, et al. Study on single-ended distributed optic-fiber sensing system based on Brillouin loss［J］. Laser & Infrared, 2014, 44(7): 772-776.

[9] Xiang Duanyan, Liu Lanfang, Chen Gang, et al. Optical waveguide phase modulation technology for generating multi-wavelength optical source［J］. Opto-Electronic Engineering, 2006, 33(2): 73-75.

[10] Li Yongqian, Wang Hu, Li Huan, et al. Theoretical model and experimental study of electro-optic modulator in Rayleigh BOTDA system［J］. Acta Photonica Sinica, 2012, 41(11): 1286-1291.

[11] Wang Hu. Research on the key technology of Rayleigh BOTDA system［D］. Baoding: North China Electric Power University, 2013.

[12] Minardo A, Bernini R, Zeni L, et al. A reconstruction technique for long-range stimulated Brillouin scattering distributed fibre-optic sensors: experimental results［J］. Measurement Science and Technology, 2005, 16(4): 900-908.

[13] Wood T H, Linke R A, Kasper B L, et al. Observation of coherent Rayleigh noise in single-source bidirectional optical fiber systems［J］. Journal of Lightwave Technology, 1988, 6(2): 346-352.

[14] Li C L, Lu Y G, Zhang X P, et al. SNR enhancement in Brillouin optical time domain reflectometer using multi-wavelength coherent detection［J］. Electronics Letters, 2012, 48(18): 1139-1141.

[15] De Souza K. Significance of coherent Rayleigh noise in fibre-optic distributed temperature sensing based on spontaneous Brillouin scattering［J］. Measurement Science and Technology, 2006, 17(5): 1065-1069.

[16] Mao X P, Tkach R W, Chraplyvy A R, et al. Stimulated Brillouin threshold dependence on fiber type and uniformity［J］. IEEE Photonics Technology Letters, 1992, 4(1): 66-69.

[17] Luo Yuan, Yan Lianshan, Shao Liyang, et al. Golay-differential pulse hybrid coding technology based on Brillouin optical time domain analysis sensors［J］. Acta Optica Sinica, 2016, 36(8): 0806002.