光参量振荡器(OPO)在主动红外化学毒剂遥测中的研究进展  

The Advances in Researching of Optical Parametric Oscillators with Application to Remote Active Infrared Chemical Sensing

作　　者：李翠萍[1] 戴杰[1] 王春勇[1] 丁学全[1] 余建华[1] 

机构地区：[1]防化研究院,北京102205

出　　处：《红外技术》2003年第6期18-21,共4页Infrared Technology

摘　　要：光参量振荡器(OPO)连续的调谐能力以及固体激光器在军事应用中的诸多优点 ,使OPO技术在主动红外化学毒剂遥测的应用研究近年来成为十分活跃的领域之一。在 8～ 1 2 μm的红外光谱区目前已发展了几种连续可调谐的OPO激光系统 ,能量输出在 1mJ/脉冲水平的实验样机已经实现。为了达到探测距离为 1～ 3km ,化学毒剂激光遥测系统必需具有足够的信噪比 ,即要求单脉冲的激光能量应提高到 2～1 0mJ/脉冲或更高。发展的趋势是研制新型的OPO晶体材料 ,降低非线性晶体的激发阈值 ,提高损伤阈值以及将初始的光子撕开 ,以多光子的形式进入 8～1 2Because of capabilities of continuous tunability an d the other advantages of solid state laser, optical parametric oscillators (OPO s) have became an active area of active infrared chemical sensing applications. Several continuously tunable 8～12 μm infrared spectral region OPO schemes have been used successfully to generate 1mJ per pulse output energies. The detection ranges up to 1～3 km requires that OPOs must provide output energies of 2～10 m J per pulse, or more. To improve energy conversion efficiency, the methods to se lect new kinds of nonlinear crystal with high damage thresholds and low internal losses, and to split the initial band photon into multiple photons in 8～12 μm band are promising in future years.

关 键 词：光参量振荡器 OPO 化学毒剂 主动红外遥测 光子撕开 军事应用 

分 类 号：E929.1[军事—军事装备学] TN753.91[兵器科学与技术—武器系统与运用工程]