Wavelength division multiplexing of dispersion managed solitons

Periodic dispersion compensation largely widens the transmission bandwidth of solitons with enhanced power. Soliton interactions and collisions in a wavelength-division-multiplexed system may however set important limitations to the channel spacing. After reviewing the peculiar properties and the optimization of single-channel dispersion managed solitons we discuss the theory of WDM transmission. In particular, we shall investigate the role of third-order dispersion, soliton interactions and collisions, amplifier spacing and noise as ultimate limiting factors to the overall system capacity.