STTR Phase I: Optical Parametric Amplification of Backscatter Signal LIDAR for Enhanced Detection Sensitivity

STTR 第一阶段：反向散射信号 LIDAR 的光学参数放大，以增强检测灵敏度

• 批准号: 0611243
• 负责人: Dominique Fourguette
• 金额: --
• 依托单位: Michigan Aerospace Corporation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-07-01 至 2007-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0611243&HistoricalAwards=false
• 关键词: STTR; Phase; Optical; Parametric; Amplification

This Small Business Technology Transfer (STTR)Phase I research project objectives include the development of the Optical Parametric Amplification of Cross Correlation of Frequency- Resolved Optical Gating (OPA XFROG) for LIDAR detection that entails the assessment of the minimum measurable signal and the application to known incoherent signals. The technique has shown compelling results, however the parameters of amplification, such as pump pulse energy and crystal thickness, need to be optimized before this optical technique can be integrated into commercial instrumentation. A second objective is the design of the LIDAR instrument equipped with the optical amplification apparatus (transmitter, receiver, and optimization of the backscattered light collection). The ability to detect weak fluorescence and Raman signals using a LIDAR system has considerable impact on future remote sensing applications. Not only will remote sensing distances be significantly extended (a minimum gain of two orders of magnitude is expected) but species with spectral signatures that are too weak to be recognized against the background noise will be within the signal-to-noise ratio required for positive identification. Remote sensing of chemical and biological materials can substantially reduce the threat level to military personnel and civilians.

该小型企业技术转让（STTR）第一阶段研究项目的目标包括开发用于激光雷达检测的频率分辨光学门控（OPA XFROG）的互相关光学参数放大，这需要评估最小可测量信号和应用于已知的非相干信号。该技术已经显示出令人信服的结果，但是放大的参数，如泵浦脉冲能量和晶体厚度，需要优化之前，这种光学技术可以集成到商业仪器。第二个目标是设计配备有光学放大装置（发射器、接收器和后向散射光收集的优化）的LIDAR仪器。使用LIDAR系统检测弱荧光和拉曼信号的能力对未来的遥感应用具有相当大的影响。不仅遥感距离将大大延长（预计最低增益为两个数量级），而且光谱特征太弱而无法在背景噪声中识别的物种也将在肯定识别所需的信噪比范围内。对化学和生物材料进行遥感可大大降低对军事人员和平民的威胁程度。