Radiative losses due to pulse interactions in birefringent nonlinear optical fibers - art. no. 036614

The transient evolution of two-polarization pulses in a birefringent nonlin ear optical fiber, governed by coupled nonlinear Schrodinger (NLS) equation s, is considered. The evolution is studied using a trial function consistin g of coupled solitonlike pulses with varying parameters augmented by a radi ative shelf in the Lagrangian formulation of the coupled equations, which y ields ordinary differential equations for the pulse parameters. It is shown that including mass and momentum fluxes due to the radiative shelf is a re quirement to obtain good agreement with full numerical solutions of the gov erning equations.