Beam modulation due to thermal deformation of grating in a spectral beam combining system
文献类型：期刊论文
| 作者 | Li, Linxin; Chen, Junming; Wang, Leilei; Shao, Jianda; Kong, Fanyu; Jin, Yunxia |
| 刊名 | Appl. Optics
 |
| 出版日期 | 2017 |
| 卷号 | 56期号:19页码:5511 |
| 通讯作者 | yxjin@siom.ac.cn ; jdshao@siom.ac.cn |
| 英文摘要 | As the power of a spectral beam combining (SBC) system increases, the temperature of the multilayer dielectric grating (MDG) inevitably rises under the influence of high-power continuous-wave (CW) laser irradiation. Hence, thermal deformation of the MDG occurs, along with degeneration of the combined beam properties. In this study, we experimentally and theoretically investigate the influence of the MDG thermal deformation on the combined beam properties. An experimental setup is first proposed, in which beam quality M-2, beam profile, and MDG wavefront deformation are investigated. The experimental results indicate that the beam quality clearly degrades and the MDG wavefront deformation becomes more significant with increasing pump-CW power density. On this basis, a calculation model for MDG thermal deformation in SBC systems is proposed. The results indicate that MDG wavefront deformation becomes more significant, combined beam profile becomes deformed, and beam quality of the combined beam degrades with increasing power density. Further, thermal expansion of the substrate is a crucial factor that induces MDG wavefront deformation and far-field intensity modulation. . |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China (NSFC) [10704079, 11104295] |
| WOS记录号 | WOS:000404745800051 |
| 源URL | [http://ir.siom.ac.cn/handle/181231/28028]  |
| 专题 | 上海光学精密机械研究所_中科院强激光材料重点实验室 |
| 作者单位 | 中国科学院上海光学精密机械研究所 |
| 推荐引用方式 GB/T 7714 | Li, Linxin,Chen, Junming,Wang, Leilei,et al. Beam modulation due to thermal deformation of grating in a spectral beam combining system[J]. Appl. Optics,2017,56(19):5511. |
| APA | Li, Linxin,Chen, Junming,Wang, Leilei,Shao, Jianda,Kong, Fanyu,&Jin, Yunxia.(2017).Beam modulation due to thermal deformation of grating in a spectral beam combining system.Appl. Optics,56(19),5511. |
| MLA | Li, Linxin,et al."Beam modulation due to thermal deformation of grating in a spectral beam combining system".Appl. Optics 56.19(2017):5511. |
入库方式： OAI收割
来源：上海光学精密机械研究所
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