{"id":5627,"date":"2023-02-13T09:53:00","date_gmt":"2023-02-13T08:53:00","guid":{"rendered":"https:\/\/www.cailabs.com\/technical-publications-and-conferences\/beam-shaping-with-multi-plane-light-conversion-to-improve-laser-micro-processing\/"},"modified":"2024-02-26T13:41:40","modified_gmt":"2024-02-26T12:41:40","slug":"beam-shaping-with-multi-plane-light-conversion-to-improve-laser-micro-processing","status":"publish","type":"publication","link":"https:\/\/www.cailabs.com\/fr\/publications-techniques-conferences\/procedes-laser-industriels\/beam-shaping-with-multi-plane-light-conversion-to-improve-laser-micro-processing\/","title":{"rendered":"Beam-Shaping with Multi-Plane Light Conversion to improve laser micro-processing"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><strong>Authors: Ivan Gusachenko<sup>1<\/sup>, Dmitry Nuzhdin<sup>1<\/sup>,&nbsp; Kathrin Placzek<sup>2<\/sup>, Daniel Holder<sup>2<\/sup>, Yoan Di Maio<\/strong><sup><strong>3<\/strong><\/sup><strong>, Pauline Jullian<\/strong><sup><strong>3<\/strong><\/sup><strong>, Jorge Fantova<\/strong><sup><strong>4<\/strong><\/sup><strong>, Mikel Gomez Aranzadi<\/strong><sup><strong>4<\/strong><\/sup><strong>,&nbsp;David Grosclaude<sup>1<\/sup>, Gwenn Pallier<sup>1<\/sup>, Guillaume Labroille<sup>1<\/sup><\/strong>&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">1- Cailabs, Rennes, FRANCE<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">2- Institut f\u00fcr Strahlwerkzeuge (IFSW), University of Stuttgart, Stuttgart, GERMANY<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">3- Manutech, St Etienne, FRANCE<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">4- CEIT, San Sebastian, SPAIN<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Laser microprocessing using Ultra-Short Pulse (USP) lasers has been developed over the past decades thanks to their unique properties of high precision with almost no thermal effects. While more and more femtosecond lasers are available with an increasing energy per pulse, the question of an efficient exploitation becomes a key to their further development. In this paper we describe three beam-shaping strategies to improve the process efficiency based on Multi-Plane Light Conversion (MPLC).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Firstly we investigate the improvement of the efficiency by combining top-hat shaping with the use of lower wavelength. We describe a beam-shaper combined with a 300fs 515nm laser for processing of different \u202fmetal samples dedicated to multiple applications (medical, etc\u2026). LIPSS generation is studied with a 100\u00b5m square dimension in the processing plane targeting a smaller period compared to IR processing, down to 0,5\u00b5m. Drilling holes of a diameter smaller than 10\u00b5m is studied too.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Secondly we investigate the improvement of efficiency by splitting beams. We present the results with a beam-splitting module used with a 100W 1030nm 500fs laser. The drilling of cavities in stainless steel and nickel samples has been performed, including 400 holes matrices. Those cavities aim at the improvement of the tribological properties by reducing the frictions. The homogeneity of the cavities and the circularity are analyzed over the whole matrix.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">At last we investigate the improvement of efficiency by using a tailored beam-shape to a specific application : the manufacturing of the mould of polymer injected projection lenses. The objective of the experiment is the generation of Fresnel-lenses style gutters on steel using a 1030nm 300fs laser. Very small (10 to 20micrometers) beam shape in the processing sample are achieved. The samples are characterized using an optical profilometer, including the gutters depth, wall slopes, and roughness.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>ILAS 2023<\/p>\n","protected":false},"author":2,"parent":0,"template":"","categorie-publication":[101],"class_list":["post-5627","publication","type-publication","status-publish","hentry","categorie-publication-procedes-laser-industriels"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Beam-Shaping with Multi-Plane Light Conversion to improve laser micro-processing - Cailabs<\/title>\n<meta name=\"description\" content=\"Laser microprocessing using Ultra-Short Pulse (USP) lasers has been developed over the past decades thanks to their unique properties of high precision with almost no thermal effects.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.cailabs.com\/fr\/publications-techniques-conferences\/procedes-laser-industriels\/beam-shaping-with-multi-plane-light-conversion-to-improve-laser-micro-processing\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Beam-Shaping with Multi-Plane Light Conversion to improve laser micro-processing - 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