Exact Soliton Solutions for the (2+1)-Dimensional Coupled Higher-Order Nonlinear Schr(o)dinger Equations in Birefringent Optical-Fiber Communication

摘要

In birefringent optical fibers,the propagation of femtosecond sofiton pulses is described by coupled higherorder nonlinear Schr(o)dinger equations.In this paper,we will investigate the bright and dark soliton solutions of (2+1)-dimensional coupled higher-order nonlinear Schr(o)dinger equations,with the aid of symbolic computation and the Hirota method.On the basis of soliton solutions,we test and discuss the interactions graphically between the solitons in the x-z,x-t,and z-t planes.