Kerr类非线性介质周期结构中的慢Bragg孤子

SLOW BRAGG SOLITONS IN A PERIODIC STRUCTURE WITH KERR NONLINEARITY

在耦合模理论的基础上 ,给出了一维无限大Kerr类非线性介质周期结构中的孤波解 ,并且指出 ,孤波的振幅依赖于入射频率以及脉宽两个参量 .同时也证明 ,在布拉格共振极限条件下 ,孤波解可以简化成所谓的“隙孤子”解或是“慢布拉格孤子”

On the basis of coupled-mode theory we find a class of solitary solutions for the electromagnetic wave propagating in an infinite one-dimensional periodic structure with an intensity-dependent refractive index. We show that the amplitude of the solitary wave is dependent of the incident frequency and the pulse width. In the Bragg resonance limit, the solitary wave can he Simplified to a soliton-like solution which was named as 'gap soliton' or 'slow Bragg soliton'.