半导体激光器光束的准直设计

利用计算机仿真,设计了相互垂直的椭圆截面柱透镜组来准直半导体激光束。两个椭圆截面柱透镜分别对半导体激光器两个方向的光束进行准直,采用自适应加权和法进行优化计算,结果可达到50μrad量级的发散角,同时也可在远场形成圆形光斑。

Collimating the semi-conductor laser beam with the elliptic section cylinder lenses

With the computer simulation,the elliptic section cylinder lenses have been designed and used to collimate the semi-conductor laser beam .This lenses is made up of two mutually perpendicular cylinder lenses and they respectively collimate two directional semi-conductor laser beams. By the self-adapting weighting method to optimize, divergence angle of 50μrad order can be reached through theoretical calculation, at the same time the circle pattern is obtained at the far field.