摘要
分别利用光强对比度和功率谱密度作为激光束的振幅调制和位相畸变的定量描述参量 ,研究了在高功率条件下 ,三次谐波转换过程对激光光束质量的影响 。
By using the intensity contrast ratio and the power spectral density (PSD) as the quantitatively describing parameters of amplitude modulation and phase perturbation, respectively, the effect of third harmonics conversion on laser beam quality under high power condition has been studied. The transformation relation between the beam quality of fundamental field and tripling field has been discussed quantitatively.
出处
《光子学报》
EI
CAS
CSCD
北大核心
2004年第5期553-556,共4页
Acta Photonica Sinica
基金
国家 8 6 3计划项目资助课题 (2 0 0 2AA84 5 0 32 )
四川省学术和技术带头人培养资金项目资助课题 (2 2 0 0 30 6 )
关键词
三次谐波转换
光束质量
振幅调制
位相畸变
光强对比度
功率谱密度
Third harmonics conversion
Beam quality
Amplitude modulation
Phase perturbation
Intensity contrast ratio
Power spectral density (PSD)
