Generation of Sub-20-fs Pulses From a Graphene Mode-Locked Laser
Date
2017Source Title
Optics Express
Print ISSN
1094-4087
Publisher
OSA - The Optical Society
Volume
25
Issue
3
Pages
2834 - 2839
Language
English
Type
ArticleItem Usage Stats
219
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286
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Abstract
We demonstrate, what is to our knowledge, the shortest pulses directly generated to date from a solid-state laser, mode locked with a graphene saturable absorber (GSA). In the experiments, a low-threshold diode-pumped Cr3+:LiSAF laser was used near 850 nm. At a pump power of 275 mW provided by two pump diodes, the Cr3+:LiSAF laser produced nearly transform-limited, 19-fs pulses with an average output power of 8.5 mW. The repetition rate was around 107 MHz, corresponding to a pulse energy and peak power of 79 pJ and 4.2 kW, respectively. Once mode locking was initiated with the GSA, stable, uninterrupted femtosecond pulse generation could be obtained. In addition, the femtosecond output of the laser could be tuned from 836 nm to 897 nm with pulse durations in the range of 80-190 fs. We further performed detailed mode locking initiation tests across the full cavity stability range of the laser to verify that pulse generation was indeed started by the GSA and not by Kerr lens mode locking. � 2017 Optical Society of America.
Keywords
Electromagnetic pulseGraphene
Laser accessories
Laser mode locking
Locks (fasteners)
Optical pumping
Pulse repetition rate
Pumping (laser)
Saturable absorbers
Solid state lasers
Ultrashort pulses
Average output power
Femtosecond pulse generation
Graphene saturable absorbers
Kerr lens mode locking
Mode-locked laser
Pulse durations
Pulse generation
Repetition rate
Mode-locked fiber lasers
Permalink
http://hdl.handle.net/11693/37032Published Version (Please cite this version)
http://dx.doi.org/10.1364/OE.25.002834Collections
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