MULTISCALE PULSE DYNAMICS IN COMMUNICATION-SYSTEMS WITH STRONG DISPERSION MANAGEMENT

The evolution of an optical pulse in a strongly dispersion-managed fib er-optic communication system is studied. pulse is decomposed into a f ast phase and a slowly evolving amplitude. The fast phase is calculate d exactly, and a nonlocal equation for the evolution of the amplitude is derived. In the limit of weak dispersion management the equation re duces to the nonlinear Schrodinger equation. A class of stationary sol utions of this equation is obtained; they represent pulses with a Gaus sian-like core and exponentially decaying oscillatory tails, and they agree with direct numerical solutions of the full system. (C) 1998 Opt ical Society of America.