20 February 2017 Generation of an ultra-flexible focused top-hat beam profile with aspheres
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Abstract
The demand for a uniform intensity distribution in the focal region of the working beam is growing steadily, especially in the field of laser material processing. To generate such a top-hat beam profile, it was shown in the past, that the use of refractive beam shaping solutions provides very good results. In this work, existing beam shaping knowledge is combined with an intelligent modular approach to create a new beam shaping solution, that simplifies both, handling and integration into existing set-ups. Furthermore, the present system enables not just a flattop intensity distribution, but even donut shaped beam profile without adding any further components to the system. Additionally, this beam shaping system is built and successfully tested. Some results of the characterization are presented.
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A. Möhl, S. Wickenhagen, U. Fuchs, "Generation of an ultra-flexible focused top-hat beam profile with aspheres", Proc. SPIE 10090, Laser Resonators, Microresonators, and Beam Control XIX, 100900V (20 February 2017); doi: 10.1117/12.2251755; https://doi.org/10.1117/12.2251755
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