{"id":172565,"date":"2023-09-22T16:26:23","date_gmt":"2023-09-22T21:26:23","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2023\/09\/engineers-develop-enhanced-gan-based-led-array-visible-light-communication-system"},"modified":"2023-09-22T16:26:23","modified_gmt":"2023-09-22T21:26:23","slug":"engineers-develop-enhanced-gan-based-led-array-visible-light-communication-system","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2023\/09\/engineers-develop-enhanced-gan-based-led-array-visible-light-communication-system","title":{"rendered":"Engineers develop enhanced GaN-based LED array visible light communication system"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/engineers-develop-enhanced-gan-based-led-array-visible-light-communication-system3.jpg\"><\/a><\/p>\n<p>Under the limitation of current density, micro-LED is difficult to achieve watts level optical power, which is not suitable for long-distance and underwater optical communication that requires high-power optical transmitter devices. Therefore, how to improve the communication performance of conventional-size LED is also a key issue at present.<\/p>\n<p>The authors of an article published in <i>Opto-Electronic Science<\/i> studied a wavelength division multiplexing visible light communication system based on multi-color LED. The system uses a Si substrate GaN-based LED with a 3D structured quantum well. In the active layer of this LED, there is a three-dimensional structure (\u201cV\u201d shaped pit, or V-pit) with a hexagonal profile, opening towards the P-type GaN layer.<\/p>\n<hr>\n<p>With the large-scale commercial use of 5G, global academia and industry have started research on the next-generation mobile communication technology (6G).<\/p>\n<p>However, the existing RF spectrum resources are seriously depleted to meet the spectrum demand of 6G for ultra-high speed and ultra-large capacity. This severe challenge stimulates researchers to focus on higher frequency bands such as terahertz, infrared and <a href=\"https:\/\/techxplore.com\/tags\/visible+light\/\" rel=\"tag\" class=\"\">visible light<\/a>. Among them, visible light communication utilizes the ultra-wide spectrum from 400THz to 800THz, which has the merits of no licensing, high secrecy, environmental-friendly, and no electromagnetic radiation.<\/p>\n<p>At the same time, with the help of commercially available LED technology, visible light communication systems can be integrated with <a href=\"https:\/\/techxplore.com\/tags\/lighting+systems\/\" rel=\"tag\" class=\"\">lighting systems<\/a>. However, limited by the electro-optic response performance of LED devices, the actual available bandwidth of the system is very small compared with the frequency band of visible light.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Under the limitation of current density, micro-LED is difficult to achieve watts level optical power, which is not suitable for long-distance and underwater optical communication that requires high-power optical transmitter devices. Therefore, how to improve the communication performance of conventional-size LED is also a key issue at present. The authors of an article published in [\u2026]<\/p>\n","protected":false},"author":534,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1497,418,1617],"tags":[],"class_list":["post-172565","post","type-post","status-publish","format-standard","hentry","category-energy","category-internet","category-quantum-physics"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/172565","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/users\/534"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=172565"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/172565\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=172565"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=172565"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=172565"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}