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借助数值模拟的方法,比较了传统的光谱相位相干直接电场重构(SPIDER)法和延时受控无条纹光谱相位相干电场重构(DCFF-SPIDER)法对复杂脉冲测量准确度的差异,并分析其内在的原因.理论计算表明,传统SPIDER方法在测量光谱和相位结构存在突变的复杂脉冲时,通常会出现一定程度的偏差,而DCFF-SPIDER方法能够保持很高的准确度.
By means of numerical simulation, the difference between the accuracy of the complex pulse measurement and the conventional SPIDER method and the DCFF-SPIDER method for time-resolved controlled stripe-free spectral phase coherent electric field reconstruction are compared Analysis of its internal causes.Theoretical calculation shows that the traditional SPIDER method usually has a certain degree of deviation when measuring complex pulses with abrupt changes in spectral and phase structures, while the DCFF-SPIDER method can maintain a high degree of accuracy.