Open AccessPreferential gain photonic-crystal fiber for mode stabilization at high average powers
Author(s) -
Tino Eidam,
Steffen Hädrich,
Florian Jansen,
Fabian Stutzki,
Jan Rothhardt,
Henning Carstens,
César Jáuregui,
Jens Limpert,
Andreas Tünnermann
Publication year - 2011
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.19.008656
Subject(s) - photonic crystal fiber , materials science , optics , fiber , mode volume , fiber laser , ytterbium , mode field diameter , core (optical fiber) , dispersion shifted fiber , photonic crystal , optoelectronics , doping , fiber optic sensor , physics , composite material
We report on the design and experimental investigation of a preferential gain photonic-crystal fiber with a mode-field diameter of 47 µm. This few-mode fiber design confines the doping of Ytterbium-ions just to the center of the core and, therefore, promotes fundamental mode operation. In a chirped-pulse amplification system we extracted up to 303 W of average power from this fiber with a measured M2 value of 1.4.