极限性能光频域反射仪关键技术研究

项目名称： 极限性能光频域反射仪关键技术研究

项目编号： No.61575001

项目类型： 面上项目

立项/批准年度： 2016

项目学科： 无线电电子学、电信技术

项目作者： 樊昕昱

作者单位： 上海交通大学

项目金额： 16万元

中文摘要： 为了满足对于具有长距离、高空间分辨率的分布式光纤传感系统的需求，本项目研究实现极限性能光频域反射仪（OFDR）的关键技术。本研究立足于申请人在日本电信电话公司(NTT)所进行的具有世界领先“距离分辨率比”性能的OFDR技术前期研究工作基础上，通过导入极限高速扫频方法对光源进行线性频率扫描以提高频率距离比，降低由于光源相位噪声以及外部环境干扰所造成的频率噪声对空间分辨率的影响，以达到长距离高空间分辨率的性能。主要研究内容包括：（1）利用非线性光信号处理过程实现极限高速扫频的原理分析和优化设计；（2）利用光学方法实现高频电信号降频的机制研究；（3）光源相位噪声补偿方法研究；（4）高性能光频域反射仪的应用研究。在国内各行各业对分布式光纤传感技术的需求逐年递增的背景下，本项目的研究具有重要的科学意义和产业应用前景。

中文关键词： 光频域反射仪；长距离；高空间分辨率；极限高速扫频；

英文摘要： Optical reflectometry with long measurement range and high spatial resolution is an essential supporting technology for distributed optical fiber sensing system. The aim of this project is to study the key techniques of extremely high-performance optical frequency domain reflectometry. This research proposal is based upon the optical frequency domain reflectometry that has been developed by the proposer when he worked for Nippon Telegraph and Telephone Coporation (NTT) Laboratories, and has realized world-leading performance on the ratio of "measurement range" to "spatial resolution". By introducing ultra-fast frequency sweeping to enhance the ratio of frequency to distance, the influence of frequency noise caused by phase noise of light source and environmental perturbation on the spatial resolution will be suppressed, making high performance with long measurement range and high spatial resolution to be achieved. Main research topics including these shown below. (1)Theoretical analysis and optimum design of realizing the ultrafast frequency sweeping using nonlinear optical signal processing; (2) Mechanism of reducing the frequency of high-frequency electrical signals realized using optical methods; (3) Study on phase noise compensation of optical source; (4) Application exploration of high-performance optical f

英文关键词： optical frequency domain reflectometry；long measurement range；high spatial resolution；ultra-fast frequency sweeping；