激光与光电子学进展, 2019, 56 (17): 170617, 网络出版: 2019-09-05
基于拉曼放大的长距离快速布里渊光时域反射仪 
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Fast and Long-Distance Brillouin Optical Time-Domain Reflectometry Based on Raman Amplification
图 & 表
图 1. 基于拉曼放大的快速BOTDR实验系统。(a)实验装置;(b)数据处理模块示意
Fig. 1. Experimental systems of fast BOTDR based on Raman amplification. (a) Experiment setup; (b) data processing module
图 2. 洛伦兹拟合后的光纤沿轴线各个位置中心频率图。(a)有拉曼放大;(b)无拉曼放大
Fig. 2. Center frequency as a function of sensing distance after Lorentzian fitting. (a) With Raman amplification; (b) without Raman amplification
图 3. 光纤沿轴线频谱。(a)全段光纤频谱;(b)光纤95 km左右部分频谱
Fig. 3. Frequency spectra along fiber. (a) Frequency spectrum of whole fiber; (b) frequency spectrum around 95 km
图 4. 长距离温度传感实验。(a)中心频率图;(b)加热段中心频率图
Fig. 4. Long-distance temperature sensing experiment. (a) Center frequency; (b) center frequency in heated section
图 6. 不同脉冲光功率下的光纤沿轴线频谱
Fig. 6. Frequency spectra along fiber under different pulsed optical powers
图 7. 不同脉冲光功率下洛伦兹拟合后的光纤沿轴线中心频率。(a) P=5 mW;(b) P=10 mW;(c) P=15 mW
Fig. 7. Center frequency as a function of sensing distance after Lorentzian fitting under different pulsed optical powers. (a) P=5 mW; (b) P=10 mW; (c) P=15 mW
马祥杰, 周黎明, 程凌浩, 刘伟民. 基于拉曼放大的长距离快速布里渊光时域反射仪[J]. 激光与光电子学进展, 2019, 56(17): 170617. Xiangjie Ma, Liming Zhou, Linghao Cheng, Weimin Liu. Fast and Long-Distance Brillouin Optical Time-Domain Reflectometry Based on Raman Amplification[J]. Laser & Optoelectronics Progress, 2019, 56(17): 170617.
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