{"id":13230,"date":"2023-09-20T11:00:14","date_gmt":"2023-09-20T11:00:14","guid":{"rendered":"https:\/\/blog.ophiropt.com\/?p=13230"},"modified":"2024-01-24T14:12:40","modified_gmt":"2024-01-24T14:12:40","slug":"green-and-blue-laser-welding-need-to-upload-ariellas-revised-version","status":"publish","type":"post","link":"https:\/\/www.ophiropt.com\/blog\/green-and-blue-laser-welding-need-to-upload-ariellas-revised-version\/","title":{"rendered":"Green and Blue Laser Welding"},"content":{"rendered":"\n

Laser welding, cutting, or cladding<\/a> has become increasingly popular and, in most cases, has been performed at the NIR wavelength region.
However, NIR lasers are less efficient for copper processing due to hig\u00adh reflectivity and therefore low energy absorption. <\/p>\n\n\n\n

Copper\nabsorbs just 5% of the laser energy at 1070nm, but up to 40 % at 515nm, and\nabout 65% at 450nm. Operation in green or blue wavelengths allow the use of significantly\nless power to achieve the same welding results.<\/p>\n\n\n\n

Lower laser power also creates less\nspattering and, as a result, fewer defects which contributes to the\nrepeatability and quality of the process.<\/p>\n\n\n\n

Using\nshorter wavelengths also enables the creation of smaller focal spots, resulting\nin deeper laser penetration inside the substrate and enabling a more rapid welding\nprocess. <\/p>\n\n\n\n

Recently,\nseveral leading producers of material processing lasers have introduced green\nand blue high-power lasers designated for welding copper foils in battery\ncells. <\/p>\n\n\n\n

BeamWatch Plus<\/a><\/strong><\/h4>\n\n\n\n

To keep pace with industry developments, Ophir updated its contactless high-power laser beam profiler.<\/p>\n\n\n\n

\"\"<\/figure><\/div>\n\n\n\n

The new BeamWatch PLUS<\/a> can characterize high-power lasers operating in both VIS wavelengths (420 – 635nm), primarily green and blue lasers and in the NIR region (950 \u2013 1100nm).<\/p>\n\n\n\n

To support smaller focal spots, the minimum measurable laser waist size was reduced to 45\u00b5m, and the overall instrument accuracy was increased.<\/p>\n\n\n\n

Real Time Beam Characterization <\/strong><\/h4>\n\n\n\n

The BeamWatch PLUS<\/a> <\/strong>is capable of providing simultaneous and real-time measurement of all industry-required parameters, including focus spot (waist) width and location, focal shift, M2, divergence, Rayleigh length and tilt angle.<\/p>\n\n\n\n

The\ndevice uses a contactless measurement method, based on Rayleigh scattering,\neliminating laser beam distortion by optical components and damage to the\ninstrument. It also enables the measurement of high-power lasers without upper\npower threshold.<\/p>\n\n\n\n

BeamWatch PLUS<\/a> provides instantaneous measurements, enabling beam monitoring at frequent intervals, without having to shut down the process or remove the tool.<\/p>\n\n\n\n

\"\"<\/figure><\/div>\n\n\n\n

The\nBeamWatch software provides a real time accurate analysis of laser waist size\nand position, focal shift, M2, divergence and other parameters essential for\nindustrial laser applications.<\/p>\n","protected":false},"excerpt":{"rendered":"

Laser welding, cutting, or cladding has become increasingly popular and, in most cases, has been performed at the NIR wavelength […]<\/p>\n","protected":false},"author":16,"featured_media":13324,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[321,3,323,1],"tags":[16,19,29],"ophirposttype":[349],"class_list":["post-13230","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industrial-applications","category-laser-beam-analysis","category-material-processing","category-ophir-photonics-group","tag-beam-profiling","tag-beamwatch","tag-high-power","ophirposttype-blogpost-en"],"yoast_head":"\nGreen and Blue Laser Welding - Ophir Photonics<\/title>\n<meta name=\"description\" content=\"Laser welding, cutting, or cladding has become increasingly popular and, in most cases, has been performed at the NIR wavelength region. 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