摘要
研究和设计了一实验性双端差分吸收激光雷达系统。其光源为一台双波长双脉冲可调谐Cr:L i SAF激光器 ,采用 BBO晶体腔内倍频和腔内调 Q技术 ,实现了二次和三次谐波输出 ;激光系统的合作目标为远处一平面镜 ,光源发射光脉冲和信号采集由微机系统控制。该系统用于测量大气中的 NO2 和 SO2
An experimental laser radar system with double-end differential absorption is studied and designed. Its light source is a dual-pulse and dual-wavelength Cr:LiSAF laser. The outputs of secondary harmonic and triple harmonic are realized through intracavity frequency doubling and intracavity Q-modulating by BBO crystal. The cooperative object for laser system is a plane mirror placed at a remote position. The light pulse of light source transmitting and signal sampling are controlled by a microcomputer system. The system is applied to measurement of the concentrating distribution for NO2 and SO2 in atmosphere.
出处
《光电工程》
EI
CAS
CSCD
北大核心
2001年第3期40-43,共4页
Opto-Electronic Engineering
基金
国家科委攻关项目 (96-92 0 -0 5 -0 3 )
关键词
激光雷达
差分吸收
大气测量
Air pollution control
Dye lasers
Light absorption
