Analysis of beam direction detection errors in solid-state slab laser beam clean-up systems
文献类型：会议论文
| 作者 | Ma, Shouhu1,2,3; Chen, Shanqiu2,3; Dong, Lizhi2,3; Su, Chunxuan1,2,3; Wang, Xun1,2,3; Lai, Boheng2,3; Yang, Kangjian2,3; Zhao, Wang1,2,3; Ma, Shiqing1,2,3; Xu, Bing2,3 |
| 出版日期 | 2019 |
| 会议日期 | October 22, 2019 - October 23, 2019 |
| 会议地点 | Hangzhou, China |
| 关键词 | adaptive optics beam stabilization solid-state slab laser |
| 卷号 | 11181 |
| DOI | 10.1117/12.2537212 |
| 页码 | 111810V |
| 英文摘要 | Beam stabilization is critical in an adaptive optics beam clean-up system to improve the power concentration in the desired area during a period of time. In these systems, the average wavefront slope from a Shack-Hartmann wavefront sensor is widely employed as the feedback of beam stabilization. However, when the adaptive optics system is applied to improve the beam quality of a high-power solid-state slab laser, the "M" shaped aberration at the edge of the slab and the fluctuating intensity distribution of the beam would induce some errors when using the average slope to measure the direction of the beam. In this paper, we present the numerical analysis of beam direction detection errors in solid-state slab laser beam clean-up systems using the average slop. At first, we calculated the direction detection errors with the aberations composed of the first 64 Legendre polynomials using the average slope. Then we measured the wavefront of a solid-state slab laser with a Shack-Hartmann wavefront sensor, and evaluated the influence of the "M" shaped aberration and fluctuating intensity distributions both in the time and frequency domains. It is clear that these factors bring in significant detection errors. Finally, we proposed a method by removing some edge sub-apertures when calculating the average slope. © 2019 SPIE. |
| 会议录 | Proceedings of SPIE 11181 - High-Power Lasers and Applications X
 |
| 会议录出版者 | SPIE |
| 文献子类 | 会议论文 |
| 语种 | 英语 |
| ISSN号 | 0277-786X |
| WOS研究方向 | Optics |
| WOS记录号 | WOS:000529188800013 |
| 源URL | [http://ir.ioe.ac.cn/handle/181551/9632]  |
| 专题 | 光电技术研究所_自适应光学技术研究室（八室） |
| 作者单位 | 1.University of Chinese Academy of Sciences, Beijing; 100049, China 2.Key Laboratory on Adaptive Optics, Chinese Academy of Sciences, Chengdu; 610209, China; 3.Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu; 610209, China; |
| 推荐引用方式 GB/T 7714 | Ma, Shouhu,Chen, Shanqiu,Dong, Lizhi,et al. Analysis of beam direction detection errors in solid-state slab laser beam clean-up systems[C]. 见:. Hangzhou, China. October 22, 2019 - October 23, 2019. |
入库方式： OAI收割
来源：光电技术研究所
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