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Proceedings Paper

A 15-kW fiber-coupled diode laser for pumping applications
Author(s): David G. Matthews; Klaus Kleine; Volker Krause; Arnd Koesters; Daniel Duennwald; Silke Pflueger
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Paper Abstract

New solid-state laser architectures require higher pump powers. In this paper we report the development of a new fibercoupled diode laser capable of generating 15 kW from a 2 mm diameter fiber with a 0.22 NA, representing a brightness of 220 mm.mrad at a single wavelength. In this design a special beam transformation technique has been developed to achieve these specifications at a single wavelength without the wavelength combination technique employed in high power diode lasers used in material processing applications. The specific laser presented here is at 938 nm with a spectral bandwidth of 3.1 nm FWHM, but the same architecture is possible for wavelengths between 910 and 1060 nm.

Paper Details

Date Published: 30 January 2012
PDF: 6 pages
Proc. SPIE 8241, High-Power Diode Laser Technology and Applications X, 824103 (30 January 2012); doi: 10.1117/12.906464
Show Author Affiliations
David G. Matthews, Laserline Inc. (United States)
Klaus Kleine, Laserline Inc. (United States)
Volker Krause, Laserline GmbH (Germany)
Arnd Koesters, Laserline GmbH (Germany)
Daniel Duennwald, Laserline GmbH (Germany)
Silke Pflueger, Laserline Inc. (United States)

Published in SPIE Proceedings Vol. 8241:
High-Power Diode Laser Technology and Applications X
Mark S. Zediker, Editor(s)

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