|
|||||
|
|
| 高功率固体激光装置光学元件"缺陷"分布与光束近场质量的定量关系研究 | |
| 引用本文： | 周丽丹,粟敬钦,李平,王文义,刘兰琴,张颖,张小民. 高功率固体激光装置光学元件"缺陷"分布与光束近场质量的定量关系研究[J]. 物理学报, 2011, 60(2): 24202-024202 |
| 作者姓名： | 周丽丹 粟敬钦 李平 王文义 刘兰琴 张颖 张小民 |
| 作者单位： | 中国工程物理研究院激光聚变研究中心,绵阳 621900 |
| 基金项目： | 国防科技重点实验室基金(批准号:9140C6803010904)资助的课题. |
| 摘 要： | 基于光传输理论,获得了弱调制情况下光学元件"缺陷"分布功率谱密度 (power spectral density, PSD)与光束近场强度分布PSD之间的定量关系;通过数值模拟的方法,针对高功率固体激光装置的基本单元(线性介质、非线性介质以及空间滤波器)对获得的理论关系进行了具体的验证和讨论.研究结果表明,弱调制下,只存在振幅型或位相型"缺陷"分布时,光学元件"缺陷"分布PSD与光束近场强度分布PSD通过近场强度分布PSD的系统传输因子联系,传输因子与系统的构型和运行状态有关.研究结果为光学元件"缺陷"分布指标的获得提供了理论基础,对高功率固体激光装置负载能力的提升起到了一定的指导作用.关键词：缺陷分布功率谱密度光学元件光束质量 |
| 关 键 词： | 缺陷分布 功率谱密度 光学元件 光束质量 |
| 收稿时间： | 2010-03-09 |
Quantitative relation between "defects" distribution on optics and near-field quality in high power solid-state laser system |
|
| Zhou Li-Dan,Su Jing-Qin,Li Ping,Wang Wen-Yi,Liu Lan-Qin,Zhang Ying,Zhang Xiao-Min. Quantitative relation between "defects" distribution on optics and near-field quality in high power solid-state laser system[J]. Acta Physica Sinica, 2011, 60(2): 24202-024202 | |
| Authors: | Zhou Li-Dan Su Jing-Qin Li Ping Wang Wen-Yi Liu Lan-Qin Zhang Ying Zhang Xiao-Min |
| Affiliation: | Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China;Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China;Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China;Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China;Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China;Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China;Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China |
| Abstract: | Based on beam propagation theory, the quantitative relation between PSD (power spectral density) of "defects" distribution on optics and that of near field intensity was studied. Its validity was discussed on linear medium, nonlinear medium and spatial filter. The results show that PSD of "defects" distribution on optics and PSD of near field intensity are connected by a system propagation factor when the modulation is weak, which is determined by system architecture and operation state. These results provide a theoretical basis for specifications of "defects" distribution on optics, and also a guidance to enhancing the power of high power solid-state laser system. |
| Keywords: | " defects" distribution power spectral density optics beam quality |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |
| 点击此处可从《物理学报》浏览原始摘要信息 | |
| 点击此处可从《物理学报》下载免费的PDF全文 | |