{"id":1269,"date":"2014-04-15T18:30:38","date_gmt":"2014-04-16T00:30:38","guid":{"rendered":"https:\/\/jtechphotonics.com\/?post_type=product&p=1269"},"modified":"2025-06-13T01:37:19","modified_gmt":"2025-06-13T07:37:19","slug":"2-8w-445nm-9mm-laser-diode-component","status":"publish","type":"product","link":"https:\/\/jtechphotonics.com\/?product=2-8w-445nm-9mm-laser-diode-component","title":{"rendered":"2.8W 445nm 9mm Laser Diode Component"},"content":{"rendered":"

Bigger and Even More Power!<\/h2>\n

This is the same as our other new 445nm 9mm laser diode but we have added our High Efficiency AR Coated Glass\u00a0lens<\/a> with 30% higher efficiency than our traditional three element glass lenses! \u00a0It has way more power than the 2W laser we have been offering. The difference is that this bad boy can run for extended times at 2.2W at 1.5amps! \u00a0This laser has a maximum limit of over 2.8W at 2.5amps and should only be over-driven like this for very short times. \u00a0 This level of power certainly creates the ability to cut more and do more with your laser. \u00a0The spot size is a bit bigger, so very small engraving will be a bit more difficult, but the trade-off in more optical power on the work surface is worth it. \u00a0This laser is very effective and can run for extended times at 1.5amps\u00a0and we recommend not going much over 2 amps for extended periods of \u201con time\u201d. \u00a0This laser also has internal ESD device for an extra level of static protection.<\/p>\n

This multi transverse mode laser diode component is pressed fit mounted in an aluminum housing and has an aluminum mountable heat-sink. \u00a0The laser is set in the heat sink with thermally conductive paste. \u00a0The front of the component contains a adjustable glass focusing lens for the laser output. \u00a0The laser has an ABSOLUTE MAXIMUM of 2.8W at 2.5amps and should only be run at this level for very short times. \u00a0Additional cooling techniques would be advisable if you want to run for extended periods at higher powers. \u00a01.5 amp at 2.2W will allow for longer \u201con\u201d times and will not degrade the laser as quickly. \u00a0Thermal issues are the number one reason for catastrophic failure of the laser. \u00a0While the mounting case provides heat sinking capability for the laser diode, it is up to the consumer to make sure the laser is operating effectively within these limits.<\/p>\n

Absolute Maximum Ratings:<\/b><\/p>\n\n\n\n\n<\/colgroup>\n\n\n\n\n\n\n
Item<\/td>\nAbsolute Maximum Ratings<\/td>\nUnit<\/td>\n<\/tr>\n
Forward Current (Tc = 25\u00b0C)<\/td>\n2.5<\/td>\nA<\/td>\n<\/tr>\n
Absolute max output optical power<\/td>\n>2.8<\/td>\nW<\/td>\n<\/tr>\n
Allowable Reverse Current (Tc = 25\u00b0C)<\/td>\n85<\/td>\nmA<\/td>\n<\/tr>\n
Operating Case Temperature<\/td>\n50<\/td>\n\u00b0C<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Electrical \/ Optical Characteristics:<\/b><\/p>\n\n\n\n\n<\/colgroup>\n\n\n\n\n\n\n\n\n\n\n
Item<\/td>\nMin<\/td>\nTyp.<\/td>\nMax<\/td>\nUnit<\/td>\n<\/tr>\n
Optical Output Power @1.3 amps<\/td>\n<\/td>\n1.6<\/td>\n<\/td>\nW<\/td>\n<\/tr>\n
Optical Output Power @1.5 amps<\/td>\n<\/td>\n2.2<\/td>\n<\/td>\nW<\/td>\n<\/tr>\n
Dominant Wavelength<\/td>\n435<\/td>\n<\/td>\n455<\/td>\nnm<\/td>\n<\/tr>\n
Threshold Current<\/td>\n80<\/td>\n<\/td>\n220<\/td>\nmA<\/td>\n<\/tr>\n
Operating Voltage<\/td>\n3.7<\/td>\n<\/td>\n5.5<\/td>\nV<\/td>\n<\/tr>\n
Focused Spot Size<\/td>\n0.007<\/td>\n0.009<\/td>\n<\/td>\nInches<\/td>\n<\/tr>\n
Beam Divergence Full Angle (1\/e^2) \/\/<\/td>\n5<\/td>\n14<\/td>\n25<\/td>\ndeg.<\/td>\n<\/tr>\n
Beam Divergence Full Angle (1\/e^2) \u2013 Perp<\/td>\n30<\/td>\n44<\/td>\n50<\/td>\ndeg.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

-Above specifications are for reference purposes only and are subject to change.\u00a0 Figures in specifications may contain measurement errors.<\/p>\n

Dimensions and mounting hole locations:<\/strong><\/p>\n

<\/i><\/i>J Tech Photonics Laser Diode Component and Mount dimensions<\/a><\/p>\n

Output Conditions<\/b><\/p>\n

The laser diode output will vary depending on the temperature.\u00a0 While there is a housing and a small heat sink, it is recommended that the diode not be on for long periods of time.\u00a0 The laser diode will also require more current to maintain the same amount of output power as the diode degrades.<\/p>\n

Static Precautions<\/b><\/p>\n

Take precaution when handling laser diodes as they are a static sensitive devices.\u00a0 There is a built in protection in the diode which can help in normal static situations but it is no guarantee.\u00a0 Static electricity and electrical surges will degrade the performance of the laser diode.<\/p>\n

Laser Safety<\/b><\/p>\n

Laser light can cause damage to eyesight and skin if proper laser safety is not used.\u00a0 Always wear the appropriate laser goggles to prevent any laser light, either directly or indirectly to contact the eye.\u00a0 Never expose skin directly to laser radiation.\u00a0 Focused light will increase the safety hazard.<\/p>\n

\"Class<\/p>\n

Purchase Safety Goggles! \u00a0Click Here!<\/a><\/h3>\n","protected":false},"excerpt":{"rendered":"

Bigger and Even More Power! This is the same as our other new 445nm 9mm laser diode but we have added our High Efficiency AR Coated Glass\u00a0lens with 30% higher efficiency than our traditional three element glass lenses! \u00a0It has way more power than the 2W laser we have been offering. The difference is that… Read More »2.8W 445nm 9mm Laser Diode Component<\/span><\/a><\/p>\n","protected":false},"featured_media":8729,"comment_status":"open","ping_status":"closed","template":"","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","neve_meta_reading_time":""},"product_brand":[],"product_cat":[150],"product_tag":[],"class_list":{"0":"post-1269","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-uncategorized","8":"first","9":"outofstock","10":"taxable","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"composite_virtual":false,"composite_layout":"","composite_add_to_cart_form_location":"","composite_editable_in_cart":false,"composite_sold_individually_context":"","composite_shop_price_calc":"","composite_components":[],"composite_scenarios":[],"bundled_by":[],"bundle_stock_status":"outofstock","bundle_stock_quantity":null,"bundle_virtual":false,"bundle_layout":"","bundle_add_to_cart_form_location":"","bundle_editable_in_cart":false,"bundle_sold_individually_context":"","bundle_item_grouping":"","bundle_min_size":"","bundle_max_size":"","bundle_price":[],"bundled_items":[],"bundle_sell_ids":[],"yoast_head":"\n2.8W 445nm 9mm Laser Diode Component - J Tech Photonics, Inc.<\/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:\/\/jtechphotonics.com\/?product=2-8w-445nm-9mm-laser-diode-component\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"2.8W 445nm 9mm Laser Diode Component\" \/>\n<meta property=\"og:description\" content=\"Bigger and Even More Power! This is the same as our other new 445nm 9mm laser diode but we have added our High Efficiency AR Coated Glass\u00a0lens with 30% higher efficiency than our traditional three element glass lenses! \u00a0It has way more power than the 2W laser we have been offering. The difference is that… Read More »2.8W 445nm 9mm Laser Diode Component\" \/>\n<meta property=\"og:url\" content=\"https:\/\/jtechphotonics.com\/?product=2-8w-445nm-9mm-laser-diode-component\" \/>\n<meta property=\"og:site_name\" content=\"J Tech Photonics, Inc.\" \/>\n<meta property=\"article:modified_time\" content=\"2025-06-13T07:37:19+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2014\/04\/2.8W-445nm-Laser-Diode-JTech-Photonics.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1000\" \/>\n\t<meta property=\"og:image:height\" content=\"837\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/jtechphotonics.com\/?product=2-8w-445nm-9mm-laser-diode-component\",\"url\":\"https:\/\/jtechphotonics.com\/?product=2-8w-445nm-9mm-laser-diode-component\",\"name\":\"2.8W 445nm 9mm Laser Diode Component - J Tech Photonics, Inc.\",\"isPartOf\":{\"@id\":\"https:\/\/jtechphotonics.com\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/jtechphotonics.com\/?product=2-8w-445nm-9mm-laser-diode-component#primaryimage\"},\"image\":{\"@id\":\"https:\/\/jtechphotonics.com\/?product=2-8w-445nm-9mm-laser-diode-component#primaryimage\"},\"thumbnailUrl\":\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2014\/04\/2.8W-445nm-Laser-Diode-JTech-Photonics.jpg\",\"datePublished\":\"2014-04-16T00:30:38+00:00\",\"dateModified\":\"2025-06-13T07:37:19+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/jtechphotonics.com\/?product=2-8w-445nm-9mm-laser-diode-component#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/jtechphotonics.com\/?product=2-8w-445nm-9mm-laser-diode-component\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/jtechphotonics.com\/?product=2-8w-445nm-9mm-laser-diode-component#primaryimage\",\"url\":\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2014\/04\/2.8W-445nm-Laser-Diode-JTech-Photonics.jpg\",\"contentUrl\":\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2014\/04\/2.8W-445nm-Laser-Diode-JTech-Photonics.jpg\",\"width\":1000,\"height\":837},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/jtechphotonics.com\/?product=2-8w-445nm-9mm-laser-diode-component#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/jtechphotonics.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Shop\",\"item\":\"https:\/\/jtechphotonics.com\/?page_id=2192\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"2.8W 445nm 9mm Laser Diode Component\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/jtechphotonics.com\/#website\",\"url\":\"https:\/\/jtechphotonics.com\/\",\"name\":\"J Tech Photonics, Inc.\",\"description\":\"CNC Laser Upgrade Kits\",\"publisher\":{\"@id\":\"https:\/\/jtechphotonics.com\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/jtechphotonics.com\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/jtechphotonics.com\/#organization\",\"name\":\"J Tech Photonics, Inc.\",\"url\":\"https:\/\/jtechphotonics.com\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/jtechphotonics.com\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2018\/06\/J-Tech-Logo-TM-SQ-JPG.jpg\",\"contentUrl\":\"https:\/\/jtechphotonics.com\/wp-content\/uploads\/2018\/06\/J-Tech-Logo-TM-SQ-JPG.jpg\",\"width\":600,\"height\":600,\"caption\":\"J Tech Photonics, Inc.\"},\"image\":{\"@id\":\"https:\/\/jtechphotonics.com\/#\/schema\/logo\/image\/\"}}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"2.8W 445nm 9mm Laser Diode Component - J Tech Photonics, Inc.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/jtechphotonics.com\/?product=2-8w-445nm-9mm-laser-diode-component","og_locale":"en_US","og_type":"article","og_title":"2.8W 445nm 9mm Laser Diode Component","og_description":"Bigger and Even More Power! 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