基于非局域非线性介质中空间光孤子的理论模型,采用分部傅里叶算法,研究了空间孤子 在二维非局域非线性介质中的传输特性及其稳定性。结果表明,在该介质中存 在拉盖尔-高斯型的空间孤子；孤子的传输特性受非局域介质的调制系数、 调制深度,以及光束的初始条件等调控,并且传输距离越大,影响越显著。研究的结果对 完善和充实空间孤子理论体系有重要意义。

Based on the basic theoretical model of spatial optical solitons in no-local nonlinear medium, using the subsection Fourier algorithm, the transmission characteristics and stability of the spatial optical solitons in two-dimensional no-local nonlinear media were studied. The results reveal that in the medium, Laguerre-Gauss soliton (LGs) can exist. The transmission properties of soliton can be controlled by the modulation depth coefficient, as well as the initial conditions of beam condition in the no-local media. Furthermore. It’s found that the bigger of the transmission distance, the greater the effect is. The results can improve and enrich the spatial soliton theory system.