Graphene mode-locked femtosecond Yb:KLuW laser

Large-area monolayer graphene, synthesized by chemical vapor deposition, was transferred to a 1-in. quartz substrate. The high-quality monolayer graphene has been subject to characterization of the nonlinear properties near 1 μm and was successfully applied as saturable absorber for passive mode-loc...

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Bibliographic Details
Published in:Applied physics letters 2012-10, Vol.101 (16)
Main Authors: Ugolotti, Elena, Schmidt, Andreas, Petrov, Valentin, Wan Kim, Jun, Yeom, Dong-Il, Rotermund, Fabian, Bae, Sukang, Hee Hong, Byung, Agnesi, Antonio, Fiebig, Christian, Erbert, Götz, Mateos, Xavier, Aguiló, Magdalena, Diaz, Francesc, Griebner, Uwe
Format: Article
Language:English
Subjects:
Femtosecond
Gain
Graphene
Lasers
Monolayers
Pulse duration
Quartz
Single wall carbon nanotubes
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Summary:Large-area monolayer graphene, synthesized by chemical vapor deposition, was transferred to a 1-in. quartz substrate. The high-quality monolayer graphene has been subject to characterization of the nonlinear properties near 1 μm and was successfully applied as saturable absorber for passive mode-locking of a femtosecond Yb:KLuW laser. The diode-pumped mode-locked Yb:KLuW laser was tunable around 1.04 μm and delivered pulses as short as 160 fs. The maximum output power of 160 mW was demonstrated for 203 fs pulse duration. The mode-locked laser results are comparable to those demonstrated with the same laser gain medium using single-walled carbon nanotubes as saturable absorbers.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4760265