相位敏感光时域反射仪研究和应用进展  

Progress of Research and Applications of Phase-Sensitive Optical Time Domain Reflectometry

作　　者：叶青[1] 潘政清[1] 王照勇[1,2] 卢斌[1,2] 魏芳[1] 瞿荣辉[1] 蔡海文[1] 赵浩 方祖捷[1] 

机构地区：[1]中国科学院上海光学精密机械研究所上海市全固态激光器及应用技术重点实验室,上海201800 [2]中国科学院大学,北京100049 [3]上海波汇科技股份有限公司,上海201203

出　　处：《中国激光》2017年第6期1-14,共14页Chinese Journal of Lasers

基　　金：国家自然科学基金(61377062;61475165;61405227;61675216);上海市科技创新基金(15XD1524500);中国科学院创新基金(CXJJ-15Z006);中国科学院重点部署项目支持

摘　　要：国家重大基础设施和关键区域的安全,对于保障经济发展、国家安全、社会稳定和人民生活具有极其重要的意义。基于相位敏感光时域反射仪(Φ-OTDR)的分布式光纤振动传感系统在入侵探测、周界安防和基础设施安全监控等方面具有独特的技术优势,近年来受到各国科技界和工业界的广泛关注。详述了本课题组近10年来在该领域的研究成果,包括Φ-OTDR定量化相位解调技术、信号干涉衰落的机理研究、超高频率响应带宽系统、超高空间分辨率系统、低噪声窄线宽单频激光器和激光扫频技术等方面的进展;介绍了Φ-OTDR系统在周界安防和铁路安全监测等领域的工程应用,并对Φ-OTDR的国内外发展趋势进行了简要的评述。The safety of major infrastructure and key regions of a country has extremely important significance to the development of national economy, national safety, stability of society, and people′s daily life. A distributed fiber vibration sensing system based on phase-sensitive optical time domain reflectometry （Φ-OTDR） has unique technical superiority in intrusion detection, perimeter security, safe monitoring of infrastructure, and so on. The distributed fiber vibration sensing system based on Φ-OTDR attracts wide attention of scientists and industries in the world. We introduce the results of our researches in the field in recent ten years, including the Φ-OTDR quantitative phase demodulation technique, the mechanism of signal interference fading, the system with ultra-high frequency response band, the system with ultra-high spatial resolution, the low noise narrow linewidth single-frequency laser, and the technique for laser frequency sweeping. We also introduce the applications of Φ-OTDR system in perimeter security, railway safe monitoring, etc. A brief review of domestic and international development in Φ-OTDR is given.

关 键 词：光纤光学 相位敏感光时域反射仪 定量化相位解调 周界安防 窄线宽单频激光器 

分 类 号：TN248[电子电信—物理电子学]