Nonlinear Pulses in Dispersion-Managed Fiber-Optic Systems in Presence of High Losses

A dispersion managed fiber-optic system can support dynamically stable pulses - DM-solitons and two branches of stable pairs of coupled DM-solitons – lower and upper bisolitons. Using semi-analytical model, we have found the dependency of the shape of these pulses on the level of losses and other parameters of the system and have verified the validity of our findings both numerically and experimentally. The obtained data can be used to define whether a dispersion-managed fiber-optic system can be considered as the one with constant dispersion.