Dispersion shifted fibers with low nonlinear sensitivity

seen for instance at 1/T = 1.1 Gbps, the BER degradation due to signal jitter can increase by a factor of lem for nsp = 50 and le’” for nsp = 20.6. In systems strongly submitted to noise and transmission non-linearity, the cumulative effects of clock jitter, soliton interaction and IS1 can now be taken into account in a comprehensive analytical formulation. The advantage of this method over exhaustive Monte-Carlo simulations is the dramatic economy of computing time to calculate the BER.