Compact graphene mode-locked wavelength-tunable erbium-doped fiber lasers: from all anomalous dispersion towards all normal dispersion

摘要

Soliton operation and soliton wavelength tuning of erbium-doped fiber lasersmode locked with atomic layer graphene was experimentally investigated undervarious cavity dispersion conditions. It was shown that not only wide rangesoliton wavelength tuning but also soltion pulse width variation could beobtained in the fiber lasers. Our results show that the graphene mode lockederbium-doped fiber lasers provide a compact, user friendly and low costwavelength tunable ultrahsort pulse source.