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基于像散曲面微透镜的半导体激光准直研究
引用本文:殷智勇,强希文,汪岳峰,江钰,徐云岫,宗飞,封双连,胡月宏.基于像散曲面微透镜的半导体激光准直研究[J].激光技术,2015,39(4):458-461.
作者姓名:殷智勇  强希文  汪岳峰  江钰  徐云岫  宗飞  封双连  胡月宏
作者单位:1.西北核技术研究所, 西安 710024;
摘    要:为了实现半导体激光器的光束准直,分析了半导体激光器光束沿快、慢轴方向的准直原理。采用单个半导体激光器作为被准直单元,提出了基于像散曲面微透镜的半导体激光器光束准直方法。讨论了半导体激光器填充因子对像散曲面微透镜准直性能的影响。对填充因子0.5的半导体激光器进行模拟验证。准直后,快轴方向剩余发散角约为0.34,慢轴方向剩余发散角约为2.69。结果表明,像散曲面微透镜不但可以对高填充因子的半导体激光器光束进行准直,而且准直后出射光斑面积小。该研究为高功率半导体激光器堆栈光束的准直提供了可行性方案。

关 键 词:激光器    光束准直    微透镜    像散    剩余发散角    填充因子
收稿时间:2014-07-21

Research of laser diode beam collimation based on astigmatism surface microlens
YIN Zhiyong,QIANG Xiwen,WANG Yuefeng,JIANG Yu,XU Yunxiu,ZONG Fei,FENG Shuanglian,HU Yuehong.Research of laser diode beam collimation based on astigmatism surface microlens[J].Laser Technology,2015,39(4):458-461.
Authors:YIN Zhiyong  QIANG Xiwen  WANG Yuefeng  JIANG Yu  XU Yunxiu  ZONG Fei  FENG Shuanglian  HU Yuehong
Abstract:In order to calimate laser beam of laser diodes, the principle of beam collimation was analyzed in the fast and slow axis directions. Based on astigmatic surface microlens, one method was proposed to collimate the laser beam by regarding one laser diode as the collimated unit. The effect of filling factor of laser diode on collimation performance was discussed. As an example of laser diode of 0.5 fill factor, the remaining divergence angle of the fast axis reaches about 0.34 and the remaining divergence angle of the slow axis reaches about 2.69. The results indicate that the microlens can collimate the laser diodes beam with high fill factor and the spot area of the collimated light is very small. The research can provide the new feasible collimation method for high power laser diodes.
Keywords:lasers  beam collimation  microlens  astigmatism  remaining divergence angle  fill factor
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