Radiative losses due to pulse interactions in birefringent nonlinear optical fibers

The extension and application of hydbrid variational methods to the coupled nonlinear Schrodinger equations in the transient evolution of two-polarization pulses are presented. The pulses occured in a birefringent nonlinear optical fiber. The evolution was analyzed using a trial funciton consisting of coupled solitonlike pulses. The pulses consisted of varying parameters augmented by a radiative shelf in the Lagrangian formulation of the coupled equations. The method yielded ordinary differential equations for the pulse parameters.