Theory of an average pulse propagation in high-bit-rate optical transmission systems with strong dispersion management
Turitsyn S.K.
Theory of a signal transmission in the high-bit-rate optical communication systems with large variations of dispersion (strong dispersion management) is presented. It is found that an averaged propagation of a chirped breathing optical pulse along the line is described by the nonlinear Schroedinger equation with additional parabolic potential. The shape of the averaged pulse is an intermediate state between the sech-type soli ton and a Gaussian pulse. Fast decaying Gaussian wings of such pulses allow more dense information packing in comparison with using sech-type fundamental soli tons. PACS: 42.30.-d