Power-weighted dispersion distribution function for characterizing nonlinear properties of long haul optical transmission links

Based on the first-order perturbation theory, we introduce the power-weighted dispersion distribution (PWDD) function to characterize nonlinear properties of fiber-optic transmission links. This technique offers a new perspective on dispersion management for pseudo-linear transmission. A rectangular PWDD model is used to describe the formation of "ghost" pulses analytically in the time domain without the Gaussian assumption for the pulse shape.