Open AccessThulium-doped all-fiber laser mode-locked by CVD-graphene/PMMA saturable absorber
Author(s) -
Grzegorz Soboń,
Jarosław Sotor,
Iwona Pasternak,
Aleksandra Krajewska,
Włodek Strupiński,
Krzysztof M. Abramski
Publication year - 2013
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.21.012797
Subject(s) - saturable absorption , materials science , fiber laser , graphene , chemical vapor deposition , laser , optics , optoelectronics , mode locking , thulium , pulse duration , doping , wavelength , nanotechnology , physics
We report an all-fiber Tm-doped fiber laser mode-locked by graphene saturable absorber. The laser emits 1.2 ps pulses at 1884 nm center wavelength with 4 nm of bandwidth and 20.5 MHz mode spacing. The graphene layers were grown on copper foils by chemical vapor deposition (CVD) and transferred onto the fiber connector end. Up to date this is the shortest reported pulse duration achieved from a Tm-doped laser mode-locked by graphene saturable absorber. Such cost-effective and stable fiber lasers might be considered as sources for mid-infrared spectroscopy and remote sensing.