Simulation, eigenmode analysis, and tolerancing for stable laser resonators

Michael Kuhn; Frank Wyrowski; Christian Hellmann; Torsten Schöning

doi:10.1117/12.854387

19 May 2010 Simulation, eigenmode analysis, and tolerancing for stable laser resonators

Michael Kuhn, Frank Wyrowski, Christian Hellmann, Torsten Schöning

Proceedings Volume 7721, Solid State Lasers and Amplifiers IV, and High-Power Lasers; 77210W (2010) https://doi.org/10.1117/12.854387
Event: SPIE Photonics Europe, 2010, Brussels, Belgium

Abstract

Recently the importance of numerical simulations for the design of laser resonators has grown considerably. This applies in particular if the alignment of components within the resonator is crucial for its stability. In such cases a tolerance analysis is required that can be done most efficiently using numerical simulation tools. In this paper, we introduce a computer model for resonators based on components and their combination using absolute or relative positioning. We show that this approach is the basis for tolerancing and sensitivity analysis. Further we discuss the concepts of field tracing and unified optical modeling that allow the coupling of several propagation methods within one modeling task. For laser resonators this involves in particular free space propagation methods as the Fresnel integral, geometrical optics and split step beam propagation methods. The primary goal is to provide a fully vectorial simulation as accurate as required and as fast as possible. This approach covers in particular general eigenmode models and general geometries including micro-structured surfaces that can be used for additional beam control as it is shown in the examples.

Citation Download Citation

Michael Kuhn, Frank Wyrowski, Christian Hellmann, and Torsten Schöning "Simulation, eigenmode analysis, and tolerancing for stable laser resonators", Proc. SPIE 7721, Solid State Lasers and Amplifiers IV, and High-Power Lasers, 77210W (19 May 2010); https://doi.org/10.1117/12.854387

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