光弹在库墨-高斯晶格中传输特性的研究

Transmission characteristics of bullet in Kummer-Gauss optical lattice

基于分布傅里叶算法及快速虚时间演化迭代法,研究了光弹在线性和非线性散射异相调制的库墨-高斯晶格中传输的特性.结果表明,线性和非线性相位调制显著地改变了光弹的形状及其稳定范围,并且非线性调制深度通过传播常数控制稳定性区域的宽度,稳定时空光孤子的能量随着非线性调制深度的加强而增长.

Based on the division Fourier algorithm and the rapid virtual time evolution （AITEM） iterative method, the transmission characteristics of bullet in linear and nonlinear scattering out of phase modulation Kummer-Gauss optical lattice are studied. The results show that the linear and nonlinear phase modulation significantly change the bullet shape and its range of stability, and the nonlinear modulation depth through the propagation constant controls the stability region width. It is shown that stable space-time soliton energy will grow with nonlinear modulation depth strengthening.