| 非均匀光斑导致相变镜镜面偏转的研究 |
| |
| 引用本文： | 孙峰,余文峰,程祖海,张耀宁,周次明. 非均匀光斑导致相变镜镜面偏转的研究[J]. 强激光与粒子束, 2003, 15(4): 331-334 |
| |
| 作者姓名： | 孙峰 余文峰 程祖海 张耀宁 周次明 |
| |
| 作者单位： | 华中科技大学 激光技术国家重点实验室，湖北 武汉 430074 |
| |
| 基金项目： | 国家863计划项目资助课题 |
| |
| 摘 要： | 针对高功率激光器中非均匀光斑热致变形导致光轴偏转的问题，提出用相变致冷镜作为腔镜来减小镜面变形峰谷值和角向偏转，在2kW连续二氧化碳激光器上进行了热变形和光束漂移实验。实验表明，与普通实心硅镜相比，相变致冷镜镜面温度分布更均匀，可有效地减小镜面偏转角和光斑中心漂移，提高远场光束质量。
|
| 关 键 词： | 高功率激光器 光束质量 非均匀光斑 角向偏转 |
| 文章编号： | 1001-4322(2003)04-0331-04 |
| 收稿时间： | 2002-09-23 |
| 修稿时间： | 2002-09-23 |
Deflection of phase change cooled mirror induced by asymmetric facula |
| |
| SUN Feng,YU Wen feng,CHENG Zu hai,ZHANG Yao ning,ZHOU Ci ming. Deflection of phase change cooled mirror induced by asymmetric facula[J]. High Power Laser and Particle Beams, 2003, 15(4): 331-334 |
| |
| Authors: | SUN Feng YU Wen feng CHENG Zu hai ZHANG Yao ning ZHOU Ci ming |
| |
| Affiliation: | State Key Laboratory of Laser Technology, Huazhong University of Science and Technology, Wuhan 430074, China |
| |
| Abstract: | In order to solve the optical axis deflection owing to asymmetric thermal deformation of mirror induced by irregular facula, phase change cooled mirror, which takes the place of normal silicon mirror, is presented to minimize PV value of deformation on mirror surface and mirror deflection. Online tests are carried out on 2kW CW carbon dioxide laser. The experimental results indicate that: Compared with normal silicon mirror, phase change cooled mirror achieves more uniform temperature field on surface. It can diminish angle of mirror deflection and centroid drift, and improve the beam quality in the far field. |
| |
| Keywords: | High power laser Optical quality Irregular facula Angle deflection |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《强激光与粒子束》浏览原始摘要信息 |
|
点击此处可从《强激光与粒子束》下载免费的PDF全文 |
