Stable multisoliton pulses in dispersion management with fiber Bragg gratings

We have studied the propagation of prechirped Gaussian pulse pairs in a fib er Bragg grating dispersion-managed system. We discovered that, under quite general conditions, a number of individual pulses evolve to a stable bound multisoliton solution, with fixed values for the phase difference and the distance between adjacent pulses. These stable multisoliton solutions may p ropagate for long distances without deformation, with the ultimate distance limitation imposed by the noise amplification. (C) 2000 Optical Society of America. OCIS codes: 190.5530, 320.1590, 270.5530, 230.1480.