Dynamical evolution of spatial bright solitons propagating in guest-host photorefractive polymers
主客体式光折变聚合物中空间明孤子的动态演化特性

Dynamical evolution of spatial bright solitons propagating in a guest host photorefractive polymer was studied, and the effects of perturbations in amplitude and width on the stability of the soliton were also discussed.When an incident optical beam is a bright soliton,this beam propagates along a linear path with its shape kept unchanged.When the perturbations in amplitude and width are very small,the incident beam can reshape itself and try to evolve into a bright soliton while it cannot propagate stably in the polymer when the perturbation is larger.