首页 | 本学科首页   官方微博 | 高级检索  
     检索      

高功率超高斯光束传输的非线性补偿研究
引用本文:赵华君,朱启华,冯国英,刘文兵,张清泉,马再如,陈建国.高功率超高斯光束传输的非线性补偿研究[J].强激光与粒子束,2004,16(3):291-295.
作者姓名:赵华君  朱启华  冯国英  刘文兵  张清泉  马再如  陈建国
作者单位:1. 四川大学 光电科学技术系,四川 成都610064; 2. 中国工程物理研究院 激光聚变研究中心,四川 绵阳 621900
基金项目:中国工程物理研究院-国家自然科学基金委联合基金资助课题(10176019)
摘    要: 分析了高功率超高斯光束在非线性介质中传播的基本理论,用分步傅里叶变换方法计算了10阶超高斯光束在非线性介质内的传输过程,最后采用具有负折射率系数的非线性介质作为补偿材料,对不同的补偿方式进行了对比分析。研究表明,四种补偿方式均可以大大减小光束的B积分,有效防止超高斯光束边缘的非线性增长,降低光束的小尺度自聚焦,同时选用后补偿作为最佳补偿方式。

关 键 词:非线性补偿  超高斯光束  B积分  小尺度自聚焦
文章编号:1001-4322(2004)03-0291-05
收稿时间:2003/9/4
修稿时间:2003年9月4日

Compensation of nonlinear self-focusing in propagation of high power super-Gaussian beams
ZHAO Hua-jun,ZHU Qi-hua,FENG Guo-ying,LIU Wen-bing,ZHANG Qing-quan,MA Zai-ru,CHEN Jian-guo.Compensation of nonlinear self-focusing in propagation of high power super-Gaussian beams[J].High Power Laser and Particle Beams,2004,16(3):291-295.
Authors:ZHAO Hua-jun  ZHU Qi-hua  FENG Guo-ying  LIU Wen-bing  ZHANG Qing-quan  MA Zai-ru  CHEN Jian-guo
Institution:1. Department of Opto Electronics, Sichuan University, Chengdu 610064,China;2. Research Center of Laser Fusion, CAEP, P.O. Box 919 988, Mianyang 621900, China
Abstract:The basic theory of a beam passing through the nonlinear medium is analysed in this paper, and the process of a ten-step high power supper-Gaussion beam passing through the nonlinear medium is calculated with the FFT. A negative nonlinear refractive index material was used as the compensating medium to compare different compensation methods. Studies suggest compensation can decrease B integral along the beam direction in a nonlinear medium, and can cancel the self-focusing of beams greatly. It can also avoid the nonlinear increase on the edges of super-Gaussian beams effectively. The compensation after nonlinear medium was selected as the idea compensating methods.
Keywords:Nonlinear compensation  Super-Gaussian beams  B integral  Small-scale self-focusing
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
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号