Radiating and non-radiating trains of light pulses in dispersion-managed optical fiber systems

We show theoretically that the radiation picture of small trains of closely packed light pulses with Gaussian input profile, exhibits both some similar features and some fundamental differences when compared to the radiating behavior of a solitary pulse in a dispersion-managed optical fiber system. For small map strengths, the pulse trains strongly radiate away energy, and there, the total amount of radiated energy increases linearly as a function of the length of the pulse train. For large map strengths, the amount of radiated energy increases rather smoothly as a function of the length of the pulse train. We establish the existence of a map strength region, in which light pulses with initially Gaussian-shaped profile executes a non-radiative propagation over transoceanic distances. (C) 2005 Elsevier B.V. All rights reserved.