机构地区: 中山大学物理科学与工程技术学院光电材料与技术国家重点实验室
出 处: 《物理学报》 2006年第4期1883-1888,共6页
摘 要: 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, a comparison is made between conventional spectral phase interferometry for direct electric-field reconstruction (SPIDER) and delay-controlled fringe-free SPIDER (DCFF-SPIDER) in the accuracy of characterization of complex pulses. The results show that errors occur likely when complex pulses with abrupt variations in spectra or/and phases are characterized with conventional SPIDER, while DCFF-SPIDER can give high accuracy. The underlying reasons for this difference are discussed.
关 键 词: 光谱相位相干直接电场重构法 飞秒脉冲测量 超快信息光学 复杂脉冲
领 域: [电子电信]