中文题目: 相位敏感光时域反射仪研究和应用进展
外文题目: Progress of Research and Applications of Phase-Sensitive Optical Time Domain Reflectometry
作者: 叶青; 潘政清; 王照勇; 卢斌; 魏芳; 瞿荣辉; 蔡海文; 赵浩; 方祖捷
刊名: 中国激光
年: 2017 卷: 44 期: 6 文章编号：600001
中文关键词:
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
英文关键词:

fiber optics; phase-sensitive optical time domain reflectometry; quantitative phase demodulation; perimeter security; narrow-linewidth single-frequency laser
中文摘要:
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(Phi-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Phi-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Phi-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Phi-OTDR的国内外发展趋势进行了简要的评述。

英文摘要:
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(Phi-OTDR)has unique technical superiority in intrusion detection,perimeter security,safe monitoring of infrastructure,and so on.The distributed fiber vibration sensing system based onPhi-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 thePhi-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 ofPhi-OTDR system in perimeter security,railway safe monitoring,etc.A brief review of domestic and international development inPhi- OTDR is given.


文献类型: 期刊论文
正文语种: Chinese
收录类别: CSCD
DOI: 10.3788/CJL201744.0600001


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