Abstract In this paper , the evolution equations of solitons’ performance parameters versus distance are deduced by the use of the variational approach under the condition of both the higher-order effects and interaction between solitons for the first time. Based on this equation, a stable operation condition is revealed from theoretical analysis by using a linearization perturbation method. It is discovered that the stable transmission of the Gaussian quasi-soliton system with zero frequency shift at bit rates up to 160 Gb/s can be realized. A 160 Gb/s high-speed and long-haul soliton transmission system is designed and its performance is numerically simulated. The simulation results are in well accordance with the theoretical analysis.
2011, Vol. 33 
