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从光谱位相相干电场重构法(SPIDER)和频率分辨光学门法(FROG)的原理和算法出发,建立了一个光路系统,在同一系统上可实现FROG方法脉宽的精确测量和SPIDER方法相位的快速检测,保留了两种方法的优点。对KLM钛宝石激光器输出的脉冲的光谱位相进行了实际测量和分析,说明了装置和算法的有效性,且脉冲检测精度优于0.1 fs。
Based on the principles and algorithms of SPIDER and FROG, an optical system is established, which can accurately measure the pulse width of FROG method and the phase of SPIDER method on the same system Rapid detection, retained the advantages of the two methods. The measurement and analysis of the spectral phase of the pulse output by the KLM Ti: sapphire laser shows the effectiveness of the device and the algorithm, and the pulse detection accuracy is better than 0.1 fs.