全光纤Fabry-Perot滤波器的高光谱水汽探测拉曼激光雷达技术研究

项目名称： 全光纤Fabry-Perot滤波器的高光谱水汽探测拉曼激光雷达技术研究

项目编号： No.61308105

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 无线电电子学、电信技术

项目作者： 王玉峰

作者单位： 西安理工大学

项目金额： 28万元

中文摘要： 大气水汽是重要的气象参数及温室气体，拉曼散射激光雷达是当前水汽探测的有效技术手段，高时空分辨率的小型星载水汽探测激光雷达研究是当前激光雷达研究的前沿课题之一。本项目基于光纤F-P滤波器所具有严格的光学性能和高光谱特性，提出全光纤F-P滤波器的拉曼激光雷达探测大气水汽的思想及技术方法，融合拉曼激光雷达水汽探测机理、现代高光谱分析及光学设计技术，重点研究可见光波长域的超窄带F-P滤光器的设计和优化；杂散光消除及弱信号检测等关键技术，实现强背景条件下的微弱拉曼散射信号的精细分光及信号提取，以期为构建新型的全光纤高光谱拉曼水汽探测激光雷达系统提供新型全光纤分光新技术及方法。本项目研究将最新光纤滤波器技术融合到激光雷达探测，丰富并促进激光雷达的分光技术发展，设计的系统将具有结构紧凑、重量轻、高效与高可靠性等特点，可为大尺度水汽剖面探测的星载拉曼激光雷达的发展及研制提供一种全新高光谱分光技术。

中文关键词： 拉曼激光雷达；光纤Fabry-Perot滤波器；水汽；全光纤；

英文摘要： Atmospheric water vapor is an important meteorological parameters and greenhouse gas,and Raman scattering lidar is an effective technique for detection of atmospheric water vapor. Recently, water vapor lidar in the space-based platform with high spatial and temporal resolution has been one of research frontiers all over the world. Based on the high spectral properties of fiber Fabry-Perot(FP)filters, the ideas and techniques of all-fiber F-P filter high spectral Raman lidar are proposed to obtain atmospheric water vapor detection. Combined with the principles of water vapor Raman lidar water, spectroscopy analysis and optical design technology, the researches are focused on the following key techniques, including the design and optimization of narrow-band F-P filter in the visible wavelength domain, methods of straylight suspression and weak signal extraction, in order to achieve the fine-detection of weak Raman signals under strong background condition,which is to provide the techniques of newly all-fiber high spectral Raman lidar system for water vapor detection. This project is merged of new methods and new technologies in modern fiber-optic sensors and lidar, which will rich and promote the development of spectroscopic technology.The system proposed is characteristic of compact-structure, light-weight, high

英文关键词： Raman lidar；fiber F-P Filter；water vapor；all-fiber；