Preferential gain photonic-crystal fiber for mode stabilization at high average powers
- 19 April 2011
- journal article
- Published by Optica Publishing Group in Optics Express
- Vol. 19 (9), 8656-8661
- https://doi.org/10.1364/oe.19.008656
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.Keywords
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