Graphene oxide mode-locked femtosecond erbium-doped fiber lasers

We demonstrated the femtosecond erbium-doped all-fiber lasers mode-locked with graphene oxide, which can be conveniently obtained from natural graphite by simple oxidation and ultra-sonication process. With proper dispersion management in an all-fiber ring cavity, the laser directly generated 200 fs...

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Published inOptics express Vol. 20; no. 14; pp. 15474 - 15480
Main Authors Xu, Jia, Liu, Jiang, Wu, Sida, Yang, Quan-Hong, Wang, Pu
Format Journal Article
LanguageEnglish
Published United States 02.07.2012
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Summary:We demonstrated the femtosecond erbium-doped all-fiber lasers mode-locked with graphene oxide, which can be conveniently obtained from natural graphite by simple oxidation and ultra-sonication process. With proper dispersion management in an all-fiber ring cavity, the laser directly generated 200 fs pulses at a repetition rate of 22.9 MHz and the average output power was 5.8 mW. With the variation of net cavity dispersion, output pulses with pulse width of 0.2~3 ps were obtained at a repetition rate of 22.9~0.93 MHz. These results are comparable with those of graphene saturable absorbers and the superiority of easy fabrication and hydrophilic property of graphene oxide will facilitate its potential applications for ultrafast photonics.
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ISSN:1094-4087
DOI:10.1364/OE.20.015474