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对三种基于布里渊散射的高空间分辨率分布式光纤传感技术,即布里渊光纤时域分析暗光脉冲技术、布里渊光相关域分析及布里渊光频域分析技术,进行了详细阐述。分析了每种技术的工作原理,对每种技术所采用的实验系统配置、所能达到的空间分辨率进行了介绍,并对其存在的局限性进行了说明。
Three kinds of high spatial resolution distributed optical fiber sensing technology based on Brillouin scattering, that is Brillouin optical fiber time-domain analysis dark light pulse technology, Brillouin optical correlation domain analysis and Brillouin optical frequency domain analysis technology, Have elaborated. The working principle of each technology is analyzed. The experimental system configuration adopted by each technology and the spatial resolution that can be achieved are introduced. The limitations of the techniques are also described.