摘要
为了解决半导体激光器出射光束发散角大的问题,根据几何光学原理,分别针对半导体激光器弧矢和子午方向的不同发散角度建立数学模型,设计出了在两个相互垂直的方向上具有不同非球面面型的非球面透镜,并在ZEMAX光学设计软件中进行了仿真。经非球面准直透镜准直之后,半导体激光器快慢轴方向的发散角分别从35°和7.5°压缩到了1.8 mrad和0.84 mrad,在距离光源10 m处接收面上的总光功率为0.497 W,光能利用率高达99.4%。结果表明,在相互垂直的方向上具有不同面型的非球面准直透镜对半导体激光器的准直具有良好的效果。
In order to solve the problem of big beam divergence of laser diode,according to the principle of geometrical optics,mathematical models are built respectively for the different divergence in the sagittal and radial directions,and an aspherical lens with two different orthogonal aspherical surface type is designed. Simulations are carried out with the ZEMAX optical design software. After passing through the designed aspherical lens,the divergence angles 35 ° and 7. 5 ° of the fast and slow axis directions of the laser diode are compressed to 1. 8mrad 0. 84mrad respectively. The total power received 10m from the light source is 0. 497W,light energy utilizing efficient is as high as 99. 4%. The results show that the aspherical lens with a different face in mutually perpendicular directions has a good effect on laser diode collimation.
出处
《激光与红外》
CAS
CSCD
北大核心
2013年第12期1384-1388,共5页
Laser & Infrared
基金
国家自然科学基金(No.61078036)
山西省重大专项(No.20111101045)资助
