{"id":12889,"date":"2022-10-11T09:02:59","date_gmt":"2022-10-11T07:02:59","guid":{"rendered":"https:\/\/amplitude-laser.com\/?post_type=news&#038;p=12889"},"modified":"2022-10-11T09:02:59","modified_gmt":"2022-10-11T07:02:59","slug":"amplitudes-high-throughput-ultrafast-laser-processing-with-femtosecond-bursts-drives-new-opportunities","status":"publish","type":"news","link":"https:\/\/amplitude-laser.com\/ja\/news\/amplitudes-high-throughput-ultrafast-laser-processing-with-femtosecond-bursts-drives-new-opportunities\/","title":{"rendered":"Amplitude\u2019s High Throughput Ultrafast Laser Processing with Femtosecond Bursts Drives New Opportunities"},"content":{"rendered":"<h2><span style=\"color: #ff5100;\">Thermal risks and ablation efficiency<\/span><\/h2>\n<p>It\u2019s no secret: advanced technology has made today&#8217;s femtosecond lasers more than capable of delivering several hundred watts of output power. The problem is that the more power there is in pulses, the more potential thermal effects can degrade the processing quality. The objective now is how best to channel and distribute this power in order to improve the ablation process efficiency.<\/p>\n<p>Amplitude has successfully met that challenge. The use of bursts has been identified as a key parameter in obtaining a high throughput, while also maintaining the quality and precision expected from a femtosecond laser.<\/p>\n<p>Eric Audouard, Amplitude\u2019s Laser Application Expert, explains the overview and outcome of this project.<\/p>\n<p>&nbsp;<\/p>\n<h2><span style=\"color: #ff5100;\">Why Ablation Efficiency of Ultrafast Femtosecond Lasers Increases with Bursts<\/span><\/h2>\n<div id=\"attachment_4050\" style=\"width: 310px\" class=\"wp-caption alignleft\"><img decoding=\"async\" aria-describedby=\"caption-attachment-4050\" class=\"wp-image-4050 size-medium\" src=\"https:\/\/amplitude-laser.com\/wp-content\/uploads\/2019\/12\/ablation-rate-300x206.jpg\" alt=\"\" width=\"300\" height=\"206\" srcset=\"https:\/\/amplitude-laser.com\/wp-content\/uploads\/2019\/12\/ablation-rate-300x206.jpg 300w, https:\/\/amplitude-laser.com\/wp-content\/uploads\/2019\/12\/ablation-rate-768x527.jpg 768w, https:\/\/amplitude-laser.com\/wp-content\/uploads\/2019\/12\/ablation-rate.jpg 829w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><p id=\"caption-attachment-4050\" class=\"wp-caption-text\">L<em>ow energy burst of pulses can reach the same ablation rate than high energy single pulse<\/em><\/p><\/div>\n<p>Ablation efficiency in many materials is usually higher when using low pulse energies, corresponding to moderate fluencies (energy density) on the sample. Therefore, if we use several pulses of total energy identical to a single pulse, we can improve this efficiency. With the \u2018Burst Mode,\u2019 instead of one single powerful pulse, the energy is distributed through several. Those are shot within a time interval which corresponds to the repetition rate of the oscillator (40 MHz).<\/p>\n<p>This low \u2018efficient\u2019 fluence regime is then involved, even if we are using a high amount of energy in the total number of pulses comprised in the burst. Indeed, though Amplitude\u2019s femtosecond lasers are already very precise, the use of this system enables our lasers to be much more efficient.<\/p>\n<p>Moreover, thanks to the FemtoBurst&#x2122; function for specific applications, many possibilities for new applications can be opened for developing user-defined shapes (in both amplitude and time separation) of the burst.\u201d<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h2><\/h2>\n<h2><span style=\"color: #ff5100;\"><strong>The Challenge of Utilizing High Throughput Lasers<\/strong><\/span><\/h2>\n<p>The use of the Burst Mode provides a 10% to 30% increase in ablation efficiency, improving therefore throughput for our industrial clients. Yet, thermal effects are expected at a high repetition rate, as opposed to femtosecond single pulses which modify the matter with very low thermal effects. A new challenge therefore arises: a compromise between high throughput machining and high quality, as the latter is always expected from femtosecond lasers.<\/p>\n<p>&nbsp;<\/p>\n<h2><span style=\"color: #ff5100;\"><strong>Applications and New Markets for Amplitude\u2019s High Throughput Ultrafast Lasers<\/strong><\/span><\/h2>\n<p>Amplitude\u2019s High-Throughput Femtosecond lasers have always proven to be reliable products for our customers who micro-machine metals and semiconductors, especially when it comes to precision and efficiency.<\/p>\n<p>Now with our system of bursts, we can keep on improving the productivity of our clients. Furthermore, our extensive research is also opening new avenues of implementation. We are indeed exploring the possibility of using the thermic effects of our Burst Mode for welding applications with femtosecond pulses, bringing them the ultrafast precision in the world of laser welding.<\/p>\n","protected":false},"featured_media":12819,"parent":0,"template":"","secteur":[210,213],"class_list":["post-12889","news","type-news","status-publish","has-post-thumbnail","hentry","secteur-210","secteur-213"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Amplitude\u2019s High Throughput Ultrafast Laser Processing with Femtosecond Bursts Drives New Opportunities - Amplitude<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/amplitude-laser.com\/ja\/news\/amplitudes-high-throughput-ultrafast-laser-processing-with-femtosecond-bursts-drives-new-opportunities\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Amplitude\u2019s High Throughput Ultrafast Laser Processing with Femtosecond Bursts Drives New Opportunities - 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