Controllable Deflecting Photorefractive Spatial Soliton1

摘要

A numerical solution, travelling-wave-like spatial soliton is obtained by usingtravelling-wave transform along with numerical methods to solve the photorefractive nonlinear equation, and its necessary forming conditions are presented. The evolution properties of the travelling-wave-like spatial soliton in the photorefractive crystal are investigated. The results show that travelling-wave-like spatial soliton can not only keep its shape invariably, but also translate its energy transversely. It is possible for controllable deflection of the spatial soliton. The deflection angle depends on the magnitude of the transverse phase modulation coefficient. These properties of the multi-soliton coherent interactions can be potentially applied in optical computation.