| 高功率垂直腔面发射激光器的光束准直特性 |
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| 引用本文： | 田振华,胡永生,秦莉,张金龙,宁永强,王立军,刘云.高功率垂直腔面发射激光器的光束准直特性[J].发光学报,2011,32(9):939-943. |
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| 作者姓名： | 田振华 胡永生 秦莉 张金龙 宁永强 王立军 刘云 |
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| 作者单位： | 1. 中国科学院 激发态物理重点实验室 长春光学精密机械与物理研究所, 吉林 长春 130033;
2. 中国科学院 研究生院, 北京 100039;
3. 中国科学院 苏州生物医学工程技术研究所, 江苏 苏州 215163 |
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| 基金项目： | 苏州市科技发展项目(SYJG0904);苏州医工所筹建专项(091901L090);吉林省科技计划发展项目(20100352)资助项目 |
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| 摘 要： | 基于高斯光束的准直原理,针对不同结构参数的大功率垂直腔面发射激光器光束特征,通过选用合适参数的透镜,研究了不同连续和脉冲电流条件激励下光束的准直特性.对于出光口径为200 μm的器件,通过f=3.1 mm,NA =0.68的透镜,连续工作条件下,准直后的最小发散角达到1°；在电流为40A、脉宽60 ns、重复频率1 k...
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| 关 键 词： | 面发射 激光 准直 高功率 |
| 收稿时间： | 2011-04-08 |
Collimation of High Power Vertical Cavity Surface Emitting Laser |
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| TIAN Zhen-hua,HU Yong-sheng,QIN Li,NING Yong-qiang,WANG Li-jun,LIU Yun.Collimation of High Power Vertical Cavity Surface Emitting Laser[J].Chinese Journal of Luminescence,2011,32(9):939-943. |
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| Authors: | TIAN Zhen-hua HU Yong-sheng QIN Li NING Yong-qiang WANG Li-jun LIU Yun |
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| Institution: | 1. Key Laboratory of Excited State Processes, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China;
2. Graduate University of Chinese Academy of Sciences, Beijing 100039, China;
3. Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou 215163, China |
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| Abstract: | Based on the principles of Gaussian beam collimation, collimation lens of different parameters were selected according to the laser beam characteristics of different high-power vertical cavity surface emitting lasers to study the different conditions of continuous and pulsed current excitation beam collimation. For a 200 μm aperture device, through the of f=3.1 mm, NA=0.68 lens, under continuous work conditon,the minimum of collimated divergence angle is 1°, under the current 40 A, pulse width 60 ns, the pulse repetition rate of 1 kHz condition, the minimum collimated divergence angle is about 2°. Results also show that under the same NA conditions, the collimated divergence angle linerly decreases when focal length increases. |
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| Keywords: | VCSEL laser collimation high power |
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