{"id":5674,"date":"2019-01-20T09:12:00","date_gmt":"2019-01-20T08:12:00","guid":{"rendered":"https:\/\/www.cailabs.com\/technical-publications-and-conferences\/laser-beam-shaping-and-stabilization-for-single-mode-laser-material-processing-based-on-multi-plane-light-conversion\/"},"modified":"2024-02-26T15:15:00","modified_gmt":"2024-02-26T14:15:00","slug":"laser-beam-shaping-and-stabilization-for-single-mode-laser-material-processing-based-on-multi-plane-light-conversion","status":"publish","type":"publication","link":"https:\/\/www.cailabs.com\/fr\/publications-techniques-conferences\/procedes-laser-industriels\/laser-beam-shaping-and-stabilization-for-single-mode-laser-material-processing-based-on-multi-plane-light-conversion\/","title":{"rendered":"Laser beam shaping and stabilization for single-mode laser material processing based on Multi-Plane Light Conversion"},"content":{"rendered":"\n<p><strong>Authors: <\/strong>Cl\u00e9ment Jacquard<sup>1<\/sup>, Olivier Pinel<sup><sup>1<\/sup><\/sup>, Pu Jian<sup><sup>1<\/sup><\/sup>, Jean-Fran\u00e7ois Morizur<sup><sup>1<\/sup><\/sup>, Guillaume Labroille<sup><sup>1<\/sup><\/sup><br><sup><sup>1<\/sup><\/sup>Cailabs (France)<br><\/p>\n\n\n\n<p><strong>Abstract<\/strong><\/p>\n\n\n\n<p>Laser beam parameters vary over time: tilt, shift, defocusing or modal imperfections can negatively impact the applications. It can drastically degrade the performance of a beam shaping setup (DOE, SLM, etc.), especially with pulsed laser processing.<\/p>\n\n\n\n<p>We present a novel approach for beam shaping coupled with passive modal filtering that compensates for the imperfections and temporal variations of the laser beam parameters. The non-ideal, misaligned beam is projected on an adapted transverse mode basis. The unwanted energy is routed onto higher order modes and dumped or used as a feedback signal, while the energy in the fundamental Gaussian mode is shaped into the spatial mode of interest (e.g. flat-top, Bessel beam, etc.). This approach is implemented with\u00a0Multi-Plane Light Conversion\u00a0technique, whose high flexibility and shaping performance enable efficient, versatile and robust shaping for applications where beam pointing accuracy and beam quality are crucial, such as micro-processing and ultrafast laser processing.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>PLI conference 2019<\/p>\n","protected":false},"author":2,"parent":0,"template":"","categorie-publication":[101],"class_list":["post-5674","publication","type-publication","status-publish","hentry","categorie-publication-procedes-laser-industriels"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Laser beam shaping and stabilization for single-mode laser material processing based on Multi-Plane Light Conversion - Cailabs<\/title>\n<meta name=\"description\" content=\"Laser beam parameters vary over time: tilt, shift, defocusing or modal imperfections can negatively impact the applications.\" \/>\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\/laser-beam-shaping-and-stabilization-for-single-mode-laser-material-processing-based-on-multi-plane-light-conversion\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Laser beam shaping and stabilization for single-mode laser material processing based on Multi-Plane Light Conversion - 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