| 基于平行玻璃板的半导体激光器阵列光束整形 |
| |
| 引用本文： | 李明伟,于晓晨,邵晓阳,胡家升.基于平行玻璃板的半导体激光器阵列光束整形[J].应用光学,2013,34(5):864-869. |
| |
| 作者姓名： | 李明伟 于晓晨 邵晓阳 胡家升 |
| |
| 作者单位： | 1.大连理工大学 电子信息与电气工程学部,辽宁 大连 116023 |
| |
| 摘 要： | 为得到质量均衡的大功率激光束，分别以条形和面阵半导体激光器为模型，基于平行玻璃板对光束的偏移作用，对准直后激光束进行分割和重排，并在Zemax软件中进行了仿真。条形半导体激光器初始发散角为40和10，整形前已准直光束快慢轴方向的光参数积分别为0.455 2 mmmrad和20.484 mmmrad，光束质量相差较大，整形后快慢轴方向光参数积分别为2.731 2 mmmrad和3.414 0 mmmrad，实现了快慢轴方向光束质量均衡。利用平行玻璃板消除面阵半导体激光器中存在的发光死区，整形后快慢轴方向光参数积分别为7.002 mmmrad和10.242 mmmrad ，整形系统耦合效率为90.13%。
|
| 关 键 词： | 激光器 光束整形 平行玻璃板 光参数积 |
Laser diode array beam shaping based on parallel glass plate |
| |
| LI Ming-wei,YU Xiao-chen,SHAO Xiao-yang,HU Jia-sheng.Laser diode array beam shaping based on parallel glass plate[J].Journal of Applied Optics,2013,34(5):864-869. |
| |
| Authors: | LI Ming-wei YU Xiao-chen SHAO Xiao-yang HU Jia-sheng |
| |
| Affiliation: | 1.Faculty of Electronic Information and Electrical Engineering,Dalian University of Technology,Dalian 116023,China |
| |
| Abstract: | In order to meet the needs of high power balanced laser beam, taking laser diode bar and stack as models, parallel glass plates were used in beam segmentation and rearrangement based on their beam displacement property. The system was simulated in Zemax. The initial divergence angels in diode laser bar were 40°and 10°. Before shaping, the beam parameter products of the collimated beam in fast axis and slow axis were 0.455 2 mm·mrad and 20.484 mm·mrad respectively, which had a great difference in beam quality. After shaping system, the beam parameter products in fast axis and slow axis were 2.731 2 mm·mrad and 3.414 0 mm·mrad respectively, with a better balanced performance. Similarly, parallel glass plates were used to eliminate the emitting dead zone of laser diode (LD) stack , increasing the beam energy density. After shaping system, the beam parameter products in fast axis and slow axis were 7.002 mm·mrad and 10.242 mm·mrad respectively, the coupling efficiency was 90.13%. |
| |
| Keywords: | lasers beam shaping parallel glass plate beam parameter product（BPP） |
|
| 点击此处可从《应用光学》浏览原始摘要信息 |
|
点击此处可从《应用光学》下载全文 |
|
