Nonperiodic quasi-stable nonlinear optical carrier pulses with sliding chirp-free points for transmission at 40Â Gbit/s rate

We present a novel nonlinear transmission regime at 40 Gbit/s using nonperiodic carrier pulses with 50% duty cycle and sliding (with propagation) chirp-free points. Quasi-stable transmission of such carrier pulses is supported by a large normal span average dispersion and misbalanced optical amplification. The possibility of applying this new nonlinear carrier pulse to WDM transmission systems is illustrated with two examples.