Intra-channel pulse interactions in 40Gbit/s dispersion-managed RZ transmission system

Numerical simulations have been used to investigate intra-channel pulse int eractions in a 40Gbit/s dispersion-managed RZ transmission system for very high map strengths, it is shown that, depending on the launch position or p rechirp, two pulses either attract or repel each other. By correctly choosi ng the launch position the interaction induced timing jitter can be greatly reduced. It is also shown that the timing shift between two pulses is maxi mum for a map strength of similar to 10. When increasing the map strength f urther the timing shift decreases.