Finite element simulation of solid state laser resonators

Matthias Wohlmuth; Konrad Altmann; Christoph Pflaum

doi:10.1117/12.808121

19 February 2009 Finite element simulation of solid state laser resonators

Matthias Wohlmuth, Konrad Altmann, Christoph Pflaum

Proceedings Volume 7194, Laser Resonators and Beam Control XI; 71940L (2009) https://doi.org/10.1117/12.808121
Event: SPIE LASE: Lasers and Applications in Science and Engineering, 2009, San Jose, California, United States

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.

Citation Download Citation

Matthias Wohlmuth, Konrad Altmann, and Christoph Pflaum "Finite element simulation of solid state laser resonators", Proc. SPIE 7194, Laser Resonators and Beam Control XI, 71940L (19 February 2009); https://doi.org/10.1117/12.808121

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