Genetic algorithm for intracavity laser beam shaping

Andrey Kostylev; Alexander Sobolev; Tatyana Cherezova; Alexis Kudryashov

doi:10.1117/12.626197

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18 August 2005 Genetic algorithm for intracavity laser beam shaping

Andrey Kostylev, Alexander Sobolev, Tatyana Cherezova, Alexis Kudryashov

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Proceedings Volume 5876, Laser Beam Shaping VI; 587605 (2005) https://doi.org/10.1117/12.626197
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

Abstract

In this paper we implement a new technique of intracavity bimorph flexible mirror control, that allows to manipulate laser beam parameters (increase power, decrease divergence) and to form a given intensity profile at any distance including a far-field. Intracavity mirror surface profile is controlled by number of voltages calculated by means of genetic algorithm combined with hill-climbing one. Then the traditional Fox-Li approach is applied. We have numerically shown the possibility of successful formation of super Gaussian beam in near field, ring-like beam in far-field, and the possibility of significant power increase of TEM₀₀ mode and far-field peak intensity enlargement.

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Andrey Kostylev, Alexander Sobolev, Tatyana Cherezova, and Alexis Kudryashov "Genetic algorithm for intracavity laser beam shaping", Proc. SPIE 5876, Laser Beam Shaping VI, 587605 (18 August 2005); https://doi.org/10.1117/12.626197

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