量子电子学报

• 纤维与波导光学 • 上一篇    

基于拉曼散射的分布式光纤量子传感机理研究

陶在红1,2,王婷婷1,2,孔春霞3   

  1. 1 南京信息工程大学电子与信息工程学院,江苏 南京 210044; 2南京信息工程大学江苏省气象探测与信息处理重点实验室,江苏 南京 210044; 3南京信息工程大学环境科学与工程学院, 江苏 南京 210044
  • 出版日期:2019-09-28 发布日期:2019-09-18
  • 作者简介:陶在红(1973-),女,江苏南京人,研究生,讲师,主要从事物理电子学方面的研究。E-mail:njtzh126@126.com
  • 基金资助:
    Supported by Key Program and Major Research Plan of National Natural Science Foundation of China (国家自然科学基金重点项目和重大研究计划, 50875132, 2011CB00000)

Investigation on mechanism of distributed fiber quantum sensing based on Raman scattering

TAO Zaihong1,2, WANG Tingting1,2, KONG Chunxia3   

  1. 1 School of Electronic and Information Engineering,Nanjing University of Information Science and Technology, Nanjing 210044,China; 2 Jiangsu Key Laboratory of Meteorological Observation and Information Processing,Nanjing University of Information Science and Technology,Nanjing 210044,China; 3 School of Environmental Science and Engineering,Nanjing University of Information Science and Technology, Nanjing 210044,China
  • Published:2019-09-28 Online:2019-09-18

摘要: 由于经典电磁理论对散射光强表征不足,提出并推导了基于自发拉曼散射的量子模型。将物质系统和电磁波分开处理,并将它们之间的相互作用作为微扰处理。通过对光纤纤芯中散射现象的分析,研究了光纤量子传感理论,建立了基于拉曼散射的光纤量子温度传感模型。在此基础上,研究了基于拉曼散射的分布式量子温度传感器的工作原理,提出了分布式光纤量子传感器的系统结构,搭建了基于拉曼散射的分布式光纤量子传感实验系统。测量了分布式量子温度传感实验系统的技术参数,并验证了系统性能。实验结果表明此系统可以对监测点进行精确定位,温度测量精度较高。

关键词: 量子光学, 分布式光纤量子传感, 跃迁概率, 自发拉曼散射

Abstract: Due to the deficiency of classic electromagnetic theory in characterizing the scattering intensity, a quantum mechanical model based on spontaneous Raman scattering is proposed and deduced, where matter and electromagnetic waves are dealt with separately, while the interaction between them are considered as perturbations. The theories of optical fiber quantum sensing are studied through the analysis of scattering in fiber core. On this basis, the principle of distributed quantum sensor based on Raman scattering is studied. And a model of fiber quantum temperature sensing based on Raman scattering is then proposed. A distributed fiber quantum sensing experimental system is putted up in our lab. The technical parameters of the distributed quantum temperature sensing experimental system are measured, and the performances of the system are experimentally verified. Results show that the distributed fiber quantum temperature sensing system can accurately locate the monitoring points, and the temperature measurement accuracy is high.

Key words: quantum optics, distributed fiber quantum sensing, transition probability, spontaneous Raman scattering