二次谐波频率分辨光学开关法测量双脉冲的振幅和相位  

Measurement of the Intensity and Phase of Double Laser Pulses Using Shg-frog

作　　者：张建忠[1] 

机构地区：[1]太原理工大学理学院物理系,山西太原030024

出　　处：《太原师范学院学报（自然科学版）》2007年第1期55-57,共3页Journal of Taiyuan Normal University:Natural Science Edition

摘　　要：介绍了二次谐波型(SHG)频率分辨光学开关法(FROG)测量双脉冲的实验系统.对实验系统中双脉冲的SHG-FROG光谱图,利用矩阵的方法进行了数值模拟,并用基于矩阵的主元素广义投影算法(PCGPA)从数值模拟的SHG-FROG光谱图中恢复了双脉冲的振幅和相位,误差达到收敛的标准(G<1-0 4).Frequency-resolved optical tensity and phase of ultrashort laser pulses. gating （FROG） is a technique that measures the inExperimental system of second-harmonic generation （SHG） FROG and the two-dimension phase retrieval algorithm have been presented. SHG-FROG trace of double laser pulse have been numerically simulated using a matrix approach,and take SHG-FROG as an example,the amplitude and the phase of double pulse have been gleaned from SHG-FROG trace by the principal component generalized projections algorithm （PCGPA）,and the SHG-FROG error reaches less than 10^-4.

关 键 词：双脉冲 脉冲测量 二维相位恢复 频率分辨光学开关法 

分 类 号：O437.1[机械工程—光学工程]