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High-power fiber lasers and amplifiers
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Paper Abstract

Experimental results based on rare-earth-doped fibers have impressively shown that fiber lasers and amplifiers are an attractive and power scalable solid-state laser concept. Based on ytterbium-doped large-mode-area double-clad fibers, in the continuous regime, output powers approaching the kW-range with diffraction limited beam quality have been shown. Average output powers in the order of 100 W have been demonstrated in the pulsed regime even for femtosecond fiber lasers. Further power scaling is limited by the end facets damage, thermo-optical problems or nonlinear effects. To overcome these restrictions microstructured fibers with several new preferable features can be used. In our contribution we will discuss power scaling of fiber lasers and amplifiers in the multi kW-range with excellent beam quality based on rare-earth-doped photonic crystal fibers.

Paper Details

Date Published: 23 December 2004
PDF: 10 pages
Proc. SPIE 5620, Solid State Laser Technologies and Femtosecond Phenomena, (23 December 2004); doi: 10.1117/12.580850
Show Author Affiliations
Andreas Tuennermann, Friedrich Schiller Univ. Jena (Germany)
Fraunhofer Institute for Applied Optics and Precision Engineering (Germany)
Sven Hoefer, Friedrich Schiller Univ. Jena (Germany)
Andreas Liem, Friedrich Schiller Univ. Jena (Germany)
Jens Limpert, Friedrich Schiller Univ. Jena (Germany)
Matthias Reich, Friedrich Schiller Univ. Jena (Germany)
Fabian Roeser, Friedrich Schiller Univ. Jena (Germany)
Thomas Schreiber, Friedrich Schiller Univ. Jena (Germany)
Holger Zellmer, Friedrich Schiller Univ. Jena (Germany)

Published in SPIE Proceedings Vol. 5620:
Solid State Laser Technologies and Femtosecond Phenomena
Jonathan A. C. Terry; W. Andrew Clarkson, Editor(s)

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