1.54μm波长激光大气衰减系数研究  

Research on Attenuation Coefficient of 1.54μm Laser

作　　者：赵少卿[1] 张雏[1] 

机构地区：[1]军械工程学院,河北石家庄050003

出　　处：《红外技术》2013年第11期723-726,共4页Infrared Technology

摘　　要：处于近红外波段的1.54 m激光在目前的激光装备中有着越来越广泛的应用,因而为了研究1.54 m激光的大气传输特性,采用Modtran大气传输软件计算、经验公式计算和设计实验测量3种方法得到了1.54 m激光在不同天气条件下的大气衰减系数,结果表明:1.54 m激光的衰减系数随能见度的提高而显著减小;在能见度大于5km时,理论计算数据与实验数据吻合较好,而在能见度小于3km的较差能见度下,经验公式对1.54 m激光已不再适用。1.54 μm laser which is in near-infrared band has more and more application in laser device. So in order to research the atmospheric transmission character, the paper uses three methods which include Modtran, empirical formula and experiment to obtain the attenuation coefficient of 1.54 μm laser. It is pointed out that, attenuation coefficient of 1.54 /μm laser will decrease conspicuously by visibility decreasing. When visibility is greater than 5 km, the theoretical data is conform to experimental data, and when visibility is less than 3 km, the empirical formula is non-application to 1.54 μm laser.

关 键 词：大气传输 1 54μm激光 衰减系数 能见度 

分 类 号：TN249[电子电信—物理电子学]