Stable multisoliton pulses in dispersion management with fiber Bragg gratings

We have studied the propagation of prechirped Gaussian pulse pairs in a fiber 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 propagate for long distances without deformation, with the ultimate distance limitation imposed by the noise amplification.