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提出了一种新的超短放大脉冲的载波-包络相位还原方法,应用小波变换从超短放大脉冲的光谱拍频干涉中直接提取载波-包络相位.消除了传统的Fourier变换方法不同宽度的滤波窗口引入不同程度的相位噪声而产生不确定性的影响,得到了更精确的载波-包络相位信息,对于近单周期超短脉冲特性测量具有重要意义.
A new carrier-envelope phase reduction method for ultra-short amplifying pulse is proposed. The wavelet transform is used to directly extract the carrier-envelope phase from the spectral beat-to-interference of ultra-short amplifying pulses. This method eliminates the traditional Fourier transform method with different widths The filter window introduces different degrees of phase noise to produce the influence of uncertainty and obtains more accurate carrier-envelope phase information, which is of great significance for the measurement of ultra-short pulse characteristics in near single cycle.