27 September 2016 Insensitive and modular gauss to top-hat beam shaping with aspheres
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Abstract
The demand for a uniform intensity distribution of working laser beams (top-hat beam) is growing steadily, especially in the field of laser material processing. Therefore, a refractive beam-shaping system that transforms a collimated Gaussian beam into a collimated top-hat beam was developed. As a result, a compact optical design was derived, which has a very high optical performance and is suitable for series production. Additionally, it can be combined with existing monolithic beam expanders from asphericon GmbH to achieve modular top-hat generation. A characterization of the system performance was carried out. The results of the design and the characterization will be presented.
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A. Möhl, A. Möhl, S. Wickenhagen, S. Wickenhagen, U. Fuchs, U. Fuchs, "Insensitive and modular gauss to top-hat beam shaping with aspheres", Proc. SPIE 9950, Laser Beam Shaping XVII, 995005 (27 September 2016); doi: 10.1117/12.2236140; https://doi.org/10.1117/12.2236140
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