Measured timing jitter versus propagation distance with dispersion-managed solitons. For modulated data at 10 Gbit/sec: Blue square is for 27-1 PRBS bit-error-rate data, Red dot is for 27-1 PRBS "eye" measurements; Black triangle is for 223-1 PRBS bit-error-rate data, Yellow diamond is for 223-1 PRBS "eye" measurements. Brown dots are for an unmodulated pulse train at 10 GHz . Black line is predicted Gordon-Haus jitter for standard solitons. Green line is the predicted Gordon-Haus jitter for dispersion-managed solitons.