椭圆柱透镜组准直半导体激光束的优化设计  

Optimization design for collimating semiconductor laser beam with elliptic cylinder lenses

作　　者：何修军[1] 蒋孟衡[1] 刘银辉[2] 周崇喜[2] 

机构地区：[1]成都信息工程学院光电技术系,四川成都610225 [2]中国科院光电技术研究所微细加工光学技术国家重点实验室,四川成都610209

出　　处：《光电工程》2006年第3期88-90,126,共4页Opto-Electronic Engineering

基　　金：四川省自然科学基金项目

摘　　要：采用光线矢量法设计了两个相互垂直的椭圆截面柱透镜组来准直半导体激光束。利用多目标优化中的加权和法进行优化计算,并提出自适应加权系数优化法。此方法能根据计算结果自动调整加权系数,从而达到最佳的优化结果。计算结果表明,该准直系统可达到45μrad左右的发散角,远远优于其它截面柱透镜组(毫弧度数量级)的准直效果。同时两柱透镜间距取适当值,还可在远场形成圆形光斑。By using the light ray vector method, the elliptic-section cylinder lenses have been designed to collimate the semiconductor laser beam. This lens group consists of two elliptic-section cylinder lenses and their axes are perpendicular. They collimate a semiconductor laser beam in two directions respectively. To improve the optimization result, the self-adapting weighting coefficient optimization method was put forward. The theoretical simulation result shows that the divergent angle can attain 45~trad or so by the method. At the same time, the circle pattern is obtained at the far field if the space between two lenses takes the appropriate value.

关 键 词：椭圆截面 柱面透镜 半导体激光束 优化设计 

分 类 号：TN364.2[电子电信—物理电子学]