CHEN Shou-man1,2，SUN Yan-ling1, XU Chun-long3
(1 College of Technological Physics, Xidian University, Xi′an 710071, Shaanxi, China; 2 Optoelectronic Technology Laboratory, Ankang College, Ankang 725000, Shaanxi, China；3 College of Physics and Information Technology, Shaanxi Normal University, Xi′an 710062, Shaanxi, China)
Abstract:
A numerical solution of travelling-wave-like spatial soliton is obtained by using travelling-wave transform along with numerical method 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, and this provides the possbility 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.
KeyWords:
travelling-wave-like spatial soliton; photorefractive; controllable deflection
