基于角度烧孔模型研究光致异构空间光孤子的形成条件和传输性质。在有背景光条件下, 利用MATLAB仿真研究折射率随光强的变化关系。根据折射率的变化规律,分析形成孤子的条件。结果表明:在有背景光时,折射率改变可正可负,可形成亮孤子和暗孤子。

Based on the angle hole burning model, the transmission characteristics and formation condition of spatial optical soliton through photoisomerization are studied. Under the background light, the relationship between the refractive index and the light intensity is studied by MATLAB. According to the change law of refractive index, the forming conditions of soliton are discussed. The results show that the refractive index change can be positive or negative with the background light, and the bright soliton and dark soliton can be formed.