【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 的浓度分布更多还原

【Abstract】 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 concentration distribution for NO 2 and SO 2 in atmosphere.更多还原