空间光孤子在具有双势垒调制克尔介质中的传播

Propagation of spatial soliton in Kerr media by double-barrier modulation

主要研究空间光孤子在非线性克尔介质的线性折射率受到双势垒调制时的传播行为。采用数值模拟的方法,讨论了在两种不同类型对称双势垒的作用下,单孤子和双孤子的空间传播行为。数值模拟结果显示,在双势垒的作用下,单孤子能表现出摆动、遂穿和导向行为,双孤子能表现出导向行为。因此,通过合理设计诸如调制深度、垒间距、单垒的宽度等双势垒参数以及初始中心偏移和入射角度等入射光束参数,可以实现孤子的捕获和控制。

Spatial solitons were studied in a Kerr-type nonlinear media with symmetric double-barrier modulation by numerical method. Two types of double barriers were discussed. The results showed that one soliton could swing, steer, tunnel and two solitons could steer in Kerr medium with transverse doublebarrier modulation. So soliton control can be achieved though properly adjusting the parameters of the double barrier and input soliton.