12 March 2013 Brilliant green laser lines for surface processing
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Abstract
Ultra-narrow line-shaped laser focuses are required for different material surface applications. We review the development of line-shaping optics for green DPSS lasers and report exemplary on several systems providing different line geometries and using different types of the lasers. These systems cover the line length range from 19 to 215 mm. One of the reported systems provides ultra-homogeny line-focus of 7.5 μm width and 215 mm length. It uses two rod Nd:YAG DPSS lasers and LIMO micro-optical anisotropic beam transformation technique to reach such a tight focusing and long depth of the focus. Contrarily another reported 200-mm green line is designed for bundling of eight Yb:YAG disc laser beams in a 100-μm wide line. The anisotropic beam transformation is not necessary for the shaping of this relatively broad line.
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Mikhail Ivanenko, Mikhail Ivanenko, Wyacheslav Grimm, Wyacheslav Grimm, Lisa Kleinschmidt, Lisa Kleinschmidt, Alexei Krasnaberski, Alexei Krasnaberski, Lutz Aschke, Lutz Aschke, Vitalij Lissotschenko, Vitalij Lissotschenko, } "Brilliant green laser lines for surface processing", Proc. SPIE 8600, Laser Resonators, Microresonators, and Beam Control XV, 86000Z (12 March 2013); doi: 10.1117/12.2004092; https://doi.org/10.1117/12.2004092
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