Frequency characteristics of stationary optical pulses in lightwave communication systems with periodical gain created by semiconductor amplifiers

摘要

The propagation and evolution are studied of optical pulses in fiber optics transmission lines with both dissipation and periodical gain created by semiconductor optical amplifiers. Using numerical simulations, conditions that permit formation of averaged and dissipative optical solitons are considered. Their basic properties, such as shift of the frequency spectrum and mean frequency change are also examined. The qualitatively different tendencies are shown of the shift of the mean frequency for the two different types of stationary pulses. The influence is determined of the saturation on the change of the mean-frequency-shift velocity.