两种光谱相位相干电场重构法对复杂脉冲测量的准确度比较  

Comparison of accuracy between two spectral phase interferometric methods in the characterization of complex pulses

作　　者：文锦辉[1] 雷亮[1] 焦中兴[1] 赖天树[1] 林位株[1] 

机构地区：[1]中山大学物理系光电材料与技术国家重点实验室,广州510275

出　　处：《物理学报》2006年第4期1883-1888,共6页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:10274107;60490295);中山大学青年教师科研启动基金资助的课题.

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 

分 类 号：TN249[电子电信—物理电子学]