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Proceedings Paper

6.8 kW peak power quasi-continuous wave tandem-pumped Ytterbium amplifier at 1071nm
Author(s): F. Beier; Maximilian Strecker; J. Nold; N. Haarlammert; T. Schreiber; R. Eberhardt; A. Tünnermann
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Paper Abstract

We demonstrate a quasi-continuous wave laser amplifier with a peak output power of 6.8 kW pumped by an industrial thin-disk laser. A high slope efficiency of 84 % has been obtained within a duty cycle of 10 % at a signal wavelength of 1071 nm. For cw-pumping we measured a maximum output power of 985W. The amplifier fiber had a step index profile with a core diameter of 45μm and a pump core diameter of 120μm. A signal to ASE peak ratio of 48 dB could be determined.

Paper Details

Date Published: 4 March 2015
PDF: 6 pages
Proc. SPIE 9344, Fiber Lasers XII: Technology, Systems, and Applications, 93441H (4 March 2015); doi: 10.1117/12.2076599
Show Author Affiliations
F. Beier, Friedrich-Schiller-Univ. Jena (Germany)
Fraunhofer-Institut für Angewandte Optik und Feinmechanik (Germany)
Maximilian Strecker, Fraunhofer-Institut für Angewandte Optik und Feinmechanik (Germany)
J. Nold, Fraunhofer-Institut für Angewandte Optik und Feinmechanik (Germany)
N. Haarlammert, Fraunhofer-Institut für Angewandte Optik und Feinmechanik (Germany)
T. Schreiber, Fraunhofer-Institut für Angewandte Optik und Feinmechanik (Germany)
R. Eberhardt, Fraunhofer-Institut für Angewandte Optik und Feinmechanik (Germany)
A. Tünnermann, Friedrich-Schiller-Univ. Jena (Germany)
Fraunhofer-Institut für Angewandte Optik und Feinmechanik (Germany)


Published in SPIE Proceedings Vol. 9344:
Fiber Lasers XII: Technology, Systems, and Applications
L. Brandon Shaw, Editor(s)

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