摘要
本文详细讨论了二次谐波自相关法测量超短光脉冲宽度时群速失配对测量的影响，发现群速失配对于干涉自相关法和Ⅱ类相位匹配强度自相关法测量影响显著。
The use of second harmonic generation as a technique for ultrashort optic pulse width measurement is analyzed to determine in detail the effect of group velocity mismatch(GVM)between fundamental and second harmonic fields.We find that for interferometric autocorrelation and intensity autocorrelation Type Ⅱ phase matching,GVM has a appreciable effect.While for intensity autocorrelation Type Ⅰ phase matching,the effect is less noticeable.
出处
《光子学报》
EI
CAS
CSCD
1998年第6期485-489,共5页
Acta Photonica Sinica
基金
中国科学院西安光学精密机械研究所所长基金
关键词
二次谐波
群速失配
干涉自相关
光脉冲
Group velocity mismatch
Second harmonic generation
Interferometric autocorrelation
Intensity autocorrelation
