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Proceedings Paper

Beam transformation of a 500-W laser diode system
Author(s): Chunqing Gao; Holger Laabs; Nicolas Kugler; Horst Weber
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Paper Abstract

For fiber coupling and end-pumping of solid-state lasers, the astigmatic beam emitted from high power diode lasers has to be transformed into a beam with rotational symmetry. In this paper we present the result of beam transformation of a high power laser diode stack. The transformation optics consists of rotated cylindrical lenses, originally used in generating twisted beams from coherent and partially coherent fields. The astigmatic beam emitted from a 500 W 2D laser diode stack is transformed into a rotationally symmetric beam. The symmetrized beam has equal beam widths, equal beam divergences in x,y-directions and the same waist positions.

Paper Details

Date Published: 8 September 1999
PDF: 5 pages
Proc. SPIE 3862, 1999 International Conference on Industrial Lasers, (8 September 1999); doi: 10.1117/12.361155
Show Author Affiliations
Chunqing Gao, Beijing Institute of Technology (China)
Holger Laabs, Technische Univ. Berlin (United States)
Nicolas Kugler, Laser- und Medizin-Technologie gGmbH (Germany)
Horst Weber, Technische Univ. Berlin and Laser- und Medizin-Technologie gGmbH (Germany)

Published in SPIE Proceedings Vol. 3862:
1999 International Conference on Industrial Lasers
Fuxi Gan; Horst Weber; Zaiguang Li; Qingming Chen, Editor(s)

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