飞秒激光脉冲测量原理与数值模拟分析方法

飞秒fs(1fs=10~(-15)s)激光脉冲测量是飞秒激光技术中非常重要的研究内容,由于测量的复杂性,操作上一般是实际测量与数值模拟结合进行,因而非常注重测量的方法性,但在实际测量中,许多测量者只注重单一方法的使用,最终往往很难达到理想的结果。为此,在对自相关测量法原理作简要介绍的基础上,着重阐述了近年发展起来的基于其上的光学频率光栅开关法(FROG)和自参考光谱位相相干电场重建法(SPIDER)的原理,及其数值模拟分析方法,以给实际测量者提供一个较全面的方法参考选择。

The Principles and Numerical Analysis methods On Femtosecond Level Laser Pulse Measurement

With the development of femtosecond level laser pulse techniques, its measurement also has become one of critical factors. This article gives a brief introduction of several conventional methods of measurement of ultra-short wavelength laser pulses, while focus on the introduction of principles and numerical analysis methods of FROG and SPIDER , so that we can offer a method reference for those who do actual experiments on femtosecond level Laser pulse measurement.