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从ＬｉＮｂＯ３Ｆｉｂｏｎａｃｃｉ超晶格的结构特点出发，数值模拟了超短脉冲在ＬｉＮｂＯ３Ｆｉｂｏｎａｃｉ超晶格内传输过程中，自相位调制及高阶群速色散效应对脉冲形状和频谱的影响．结果表明，超短脉冲在Ｆｉｂｏｎａｃｉ超晶格中传输时，由于自相位调制（ＳＰＭ）与群速色散（ＧＶＤ）耦合效应的影响，脉冲形状畸变和频谱展宽均是不对称的，随着晶格长度的增加，脉冲将会发生分裂，以至成为两个独立的子脉冲，同时也会出现脉冲频谱上的分裂
Based on the structural characteristics of LiNbO3Fibonacci superlattice, the effects of self-phase modulation and high-order group velocity dispersion on pulse shape and frequency spectrum are numerically simulated in the process of LiNbO3Fibonaci superlattice. The results show that due to the effect of SPM and GVD coupling, the pulse shape distortion and spectrum broadening are both asymmetric when the ultrashort pulse is transmitted in the Fibonaci superlattice. As the lattice As the length increases, the pulse will split so that it becomes two independent subpulses and a split in the pulse spectrum