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。
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.
出处
《光学学报》
EI
CAS
CSCD
北大核心
2002年第1期14-18,共5页
Acta Optica Sinica
