Quasi-transform-limited pulse transmission in dispersion managed soliton system

A Gaussian pulse with frequency chirping is transmitted in a dispersion management (DM) soliton system. The existence of an initial chirping makes the pulsewidth and amplitude fluctuate over distance around their initial values, and increases the energy enhancement factor. The quasi-transform-limited pulse generated with spectral windowing is also propagated in the DM soliton system. With proper energy enhancement, the quasi-transform-limited pulse can propagate very stably, and the performance is better than that in a uniform low dispersion soliton system, which suggests that a DM system has more chirping and waveform tolerance in soliton sources than a uniform fiber system.