| 位相畸变三次谐波转换 |
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| 引用本文： | 侯静,凌宁.位相畸变三次谐波转换[J].中国激光,2002,29(6):525-529. |
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| 作者姓名： | 侯静 凌宁 |
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| 作者单位： | 1. 中国科学院光电技术研究所,四川成都,610209;国防科技大学理学院,湖南长沙,410073
2. 中国科学院光电技术研究所,四川成都,610209 |
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| 摘 要： | 研究了KDP晶体TypeⅠ /TypeⅡ角度匹配的三倍频方案中 ,离散效应和基波位相畸变对三次谐波的影响。重点考虑了位相畸变所带来的在光束全口径上e光折射率以及相位失配等的变化 ,分析了功率密度分布为超高斯型且具有Zernike多项式表述的各阶像差的光束的三次谐波转换过程 ,得到了不同像差对三次谐波横向光功率密度分布的影响以及转换效率变化曲线。
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| 关 键 词： | 三次谐波 位相畸变 光功率密度分布 转换效率 |
| 收稿时间： | 2001/3/21 |
Third Harmonic Conversion of Aberrated Laser Beam |
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| HOU Jing ,LING Ning Institute of Optics and Electronics,The Chinese Academy of Sciences,Chengdu Science Institute of National University of Defense Technology,Changsha.Third Harmonic Conversion of Aberrated Laser Beam[J].Chinese Journal of Lasers,2002,29(6):525-529. |
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| Authors: | HOU Jing LING Ning Institute of Optics and Electronics The Chinese Academy of Sciences Chengdu Science Institute of National University of Defense Technology Changsha |
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| Affiliation: | HOU Jing 1,2,LING Ning 1 1Institute of Optics and Electronics,The Chinese Academy of Sciences,Chengdu 610209 2Science Institute of National University of Defense Technology,Changsha 410073 |
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| Abstract: | The third harmonic conversion of Type Ⅰ/Type Ⅱ angle duning scheme of KDP is affected by aberrations of fundamental waves is studied, including the nonuniform distribution across the aperture of refactive index, phase mismatch and etc., which are deduced by aberrations of fundamental waves. The results of transverse intensity distributions and conversion efficiencies of super Gaussian beam with aberrations of Zernike polynomials are presented. |
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| Keywords: | third harmonic aberration conversion efficiency nonlinear crystal |
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