| 单轴晶体Ⅰ类匹配相位畸变光束二次谐波理论分析 |
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| 引用本文： | 侯静,张雨东,姜文汉,凌宁.单轴晶体Ⅰ类匹配相位畸变光束二次谐波理论分析[J].光学学报,2002,22(1):4-18. |
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| 作者姓名： | 侯静 张雨东 姜文汉 凌宁 |
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| 作者单位： | 1. 中国科学院光电技术研究所,成都,610209;国防科技大学理学院,长沙,410073
2. 中国科学院光电技术研究所,成都,610209 |
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| 摘 要： | 理论上研究了单轴晶体Ⅰ类匹配时相位畸变光束二次谐波的转换，其中考虑了衍射、离散效应，给出了相位畸变小信号解。在此基础上，以KDP晶体为例分析并给出了有像差高斯光束的转换效率随晶体长度的变化规律，对于任意光强分布和有任意相位畸变光束的谐波转换也是同样适用的。
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| 关 键 词： | 单轴晶体 Ⅰ类匹配 二次谐波 相位畸变 小信号解 相位匹配 谐波转换 |
Second-Harmonic Generation of Phase Aberrated Laser Beams by Type ⅠPhase Matching in Uniaxial Crystals |
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| Hou Jing , Zhang Yudong Jiang Wenhan Ling Ning.Second-Harmonic Generation of Phase Aberrated Laser Beams by Type ⅠPhase Matching in Uniaxial Crystals[J].Acta Optica Sinica,2002,22(1):4-18. |
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| Authors: | Hou Jing Zhang Yudong Jiang Wenhan Ling Ning |
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| Institution: | Hou Jing 1),2) Zhang Yudong 1) Jiang Wenhan 1) Ling Ning 1) 1),Institute of Optics and Electronics,The Chinese Academy of Sciences,Chengdu 610209 2),Institute of Science,National University of Defense Technology,Changsha 410073 |
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| Abstract: | The second-harmonic generation theory of phase aberrated laser beam in uniaxial crystals is discussed, in cluding the effects of diffraction and transverse walkoff. The solutions of the undepleted-pump approximation is given. The conversion efficiency of Gauss beams with aberrations is calculated according to the solutions. The solution can be used under any assumptions of intensity distribution and phase aberration of the pumping wave. |
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| Keywords: | second-harmonic generation phase aberration solution under the small signal condition |
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