Influence of dispersion propagation regime on the dispersion-supported transmission performance

Abstract

This paper investigates, through semi-analytical simulation, the feasibility of the application of the dispersion supported transmission technique in the normal dispersion regime for the first time. It is shown that, in case of normal propagation regime, the dispersion supported transmission technique operated at 4OGbit/s can improve the system sensitivity by about 7dB relative to anomalous propagation regime. This improvement is achieved due to a significant increase of eye diagram opening, which happens at lower total fiber dispersion, and with greater -3dB bandwidth frequency of first order equalizer filter at receiver than in the anomalous regime. It is shown that these conclusions are consistent with analysis performed utilizing the amplitude and delay distortions of the system transfer function.