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| 用SHG-FROG方法测量超短光脉冲的振幅和相位 | |
| 引用本文： | 龙井华,高继华,巨养锋,阮双琛.用SHG-FROG方法测量超短光脉冲的振幅和相位[J].光子学报,2002,31(10):1292-1296. |
| 作者姓名： | 龙井华 高继华 巨养锋 阮双琛 |
| 作者单位： | 1. 深圳大学深圳市激光工程重点实验室,深圳,518060;中国科学院西安光学精密机械研究所,西安,710068 2. 深圳大学理学院,深圳,518060 3. 深圳大学深圳市激光工程重点实验室,深圳,518060 |
| 基金项目： | 教育部高等学校骨干教师资助计划资助项目 (项目编号 :2 0 0 0 30 ) |
| 摘 要： | 介绍了二次谐波振荡频率分辨光学快门(SHGFROG)测量超短脉冲的实验系统和二维相位恢复算法,这种方法可以实现对超短脉冲振幅和相位的完全测量.利用矩阵方法数值模拟了几种常见超短脉冲的SHGFROG迹线,并用主元素广义投影算法(PCGPA)从这些无噪音的SHGFROG迹线中恢复了脉冲的振幅和相位,误差接近收敛的标准.研究结果表明,这种测量方法结构简单,算法可靠,是测量超短脉冲的理想方法之一. |
| 关 键 词： | 超短脉冲 脉冲测量 频率分辨光学快门 相位恢复 |
| 收稿时间： | 2001/12/3 |
| 修稿时间： | 2001年12月3日 |
MEASUREMING THE AMPLITUDE AND PHASE OF ULTRASHORT PULSES USING SHG-FROG |
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| Long Jinghua,Gao Jihua,Ju Yangfeng,Ruan Shuangchen.MEASUREMING THE AMPLITUDE AND PHASE OF ULTRASHORT PULSES USING SHG-FROG[J].Acta Photonica Sinica,2002,31(10):1292-1296. | |
| Authors: | Long Jinghua Gao Jihua Ju Yangfeng Ruan Shuangchen |
| Institution: | 1. Key Lab.of Laser Engineering Shenzhen, Shenzhen University, Shenzhen 518060;2. Xi’an Institute of Optics and Precision Mechanics, Academia Sinica, Xi’an 710068;3. School of Science Shenzhen University, ShenZhen 518060 |
| Abstract: | Second harmonic generating frequency resolved optical gating (SHG FROG) is one of techniques measuring the amplitude and the phase of ultrashort pulses.Experimental system of SHG FROG and the two dimension phase retrieval algorithm have been introduced.Numerically simulated SHG FROG trace of several types of common ultrshort pulses has been generated using a matrix approach,then the amplitude and the phase of this pulses have been retrievaled from these free noise SHG FROG traces by the principal component generalized projections(PCGP)algorithm,and the SHG FROG error near the criterion of convergence. |
| Keywords: | ultrashort pulse Measurement of pulses Frequency resolved optical gating Phase retrieval |
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