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Proceedings Paper

Nd:YAG slab laser partially end-pumped by diode laser stack
Author(s): Yan Liao; Keming Du; Stephan Falter; Jian Zhang; Michael Quade; Peter Loosen; Reinhart Poprawe
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Paper Abstract

An efficient high power cw Nd:YAG slab laser, partially end pumped by diode laser stacks is described in this paper. With conventional stable resonator, the optical efficiency amounted to 44% and the slope efficiency 55%. The output beam with this resonator was rectangular and the beam quality asymmetric in two orthogonal planes. The symmetry of the beam quality was obtained by a step mirror beam shaping technique. By using a hybrid resonator, near diffraction limited beam quality in the unstable direction was obtained with an efficiency of 46%.

Paper Details

Date Published: 18 August 1997
PDF: 6 pages
Proc. SPIE 3097, Lasers in Material Processing, (18 August 1997); doi: 10.1117/12.281125
Show Author Affiliations
Yan Liao, Fraunhofer-Institut fuer Lasertechnik (Germany)
Keming Du, Fraunhofer-Institut fuer Lasertechnik (Germany)
Stephan Falter, Fraunhofer-Institut fuer Lasertechnik (Germany)
Jian Zhang, Fraunhofer-Institut fuer Lasertechnik (Germany)
Michael Quade, Fraunhofer-Institut fuer Lasertechnik (Germany)
Peter Loosen, Fraunhofer-Institut fuer Lasertechnik (Germany)
Reinhart Poprawe, Fraunhofer-Institut fuer Lasertechnik (Germany)


Published in SPIE Proceedings Vol. 3097:
Lasers in Material Processing
Leo H. J. F. Beckmann, Editor(s)

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