多信道非线性平面光波导的空间光弧子开关

Optically Controlled Switching for Spatial Solitons in Multichannel Planar Waveguide System

本文考虑在横向具有正弦形周期折射率调制的非线性平面光波导 ,它构成平行的多信道系统。分别用解析法和 BPM数值方法探索在该系统中稳定传输的空间光弧子实现开关的可能性。研究结果表明 :只要控制光点强度超过某一阈值 。

We consider a model of a nonlinear planar optical waveguide with a sinusoidal modulation of the refractive index in the transverse direction,which gives rise to a system of parallel troughs that can trap solitary beams (spatial solitons) stably.The possibility of optically controlled switching for spatial solitons in this multi channel system has been investigated by using perturbation theory and BPM method.Results show that the switching is possible,provided that the spots strength exceeds a certain threshold value.