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Opt Express. 2011 Apr 25;19(9):8656-61. doi: 10.1364/OE.19.008656.

Preferential gain photonic-crystal fiber for mode stabilization at high average powers.

Author information

  • 1Friedrich-Schiller-University Jena, Institute of Applied Physics, Jena, Germany. eidam@iap.uni-jena.de

Abstract

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.

PMID:
21643117
[PubMed - indexed for MEDLINE]
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