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Proceedings Paper

Power and energy scaling of fiber laser systems based on ytterbium-doped large-mode-area fibers
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Paper Abstract

We review our recent work on fiber based laser systems in the continuous wave and nanosecond pulse regime. A significant power and energy scaling was possible by applying low-numerical aperture large-mode-area ytterbium-doped double-clad fibers which emit an excellent beam quality and possess a reduced nonlinearity due to a mode field diameter of >20 μm. We report on a continuous wave fiber laser with an output power approaching 500 W from a single fiber and the amplification of ultrastable, narrow linewidth single-frequency radiation to the 100 W level with diffraction-limited beam quality without the limitation of nonlinear effects. Furthermore the amplification of nanosecond pulses to millijoule pulse energy and average powers up to 100 W is demonstrated.

Paper Details

Date Published: 3 July 2003
PDF: 13 pages
Proc. SPIE 4974, Advances in Fiber Lasers, (3 July 2003); doi: 10.1117/12.484165
Show Author Affiliations
Jens Limpert, Friedrich-Schiller-Univ. Jena (Germany)
Andreas Liem, Friedrich-Schiller-Univ. Jena (Germany)
Thomas Schreiber, Friedrich-Schiller-Univ. Jena (Germany)
Holger Zellmer, Friedrich-Schiller-Univ. Jena (Germany)
Andreas Tuennermann, Friedrich-Schiller-Univ. Jena (Germany)

Published in SPIE Proceedings Vol. 4974:
Advances in Fiber Lasers
L. N. Durvasula, Editor(s)

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