Ultrahigh-repetition-rate bound-soliton harmonic passive mode-locked fiber lasers

On the basis of numerical simulation results, we put forward a way to realize harmonic passive mode locking of fiber lasers with an ultrahigh-repetition-rate pulse train. The equidistant distribution of ultrashort Pulses filling the total laser cavity is due to bound-soliton mechanisms. In the case of large bound energy, Such long soliton trains are, very stable and have the ideal periodic structure as a soliton crystal. (C) 2008 Optical Society of America