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Proceedings Paper

Finite element simulation of solid state laser resonators
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Paper Abstract

The complex physical optics behavior in modern solid state lasers can only approximately be described using common simulation techniques, such as a Gaussian mode analysis or beam propagation methods. For this reason we present a new 3-dimensional, time-dependent method to model the laser beam in a resonator in a more comprehensive way. We transform the wave equation by a special ansatz and solve the resulting equation, which is similar to a Schroedinger equation, by a finite element analysis. In this paper we explain our new approach and present first numerical results for a simple laser cavity. The results are compared with those of a dynamic multimode analysis using Gaussian eigenmodes.

Paper Details

Date Published: 19 February 2009
PDF: 10 pages
Proc. SPIE 7194, Laser Resonators and Beam Control XI, 71940L (19 February 2009); doi: 10.1117/12.808121
Show Author Affiliations
Matthias Wohlmuth, Univ. Erlangen-Nuremberg (Germany)
Konrad Altmann, LAS-CAD GmbH (Germany)
Christoph Pflaum, Univ. Erlangen-Nuremberg (Germany)

Published in SPIE Proceedings Vol. 7194:
Laser Resonators and Beam Control XI
Alexis V. Kudryashov; Alan H. Paxton; Vladimir S. Ilchenko; Lutz Aschke, Editor(s)

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