{"id":29268,"date":"2016-07-19T13:33:14","date_gmt":"2016-07-19T13:33:14","guid":{"rendered":"https:\/\/www.retarus.com\/blog\/thanks-for-the-fiber-optics-revolution-mr-kao\/"},"modified":"2026-08-06T14:42:22","modified_gmt":"2026-08-06T14:42:22","slug":"thanks-for-the-fiber-optics-revolution-mr-kao","status":"publish","type":"post","link":"https:\/\/www.retarus.com\/blog\/fr\/thanks-for-the-fiber-optics-revolution-mr-kao\/","title":{"rendered":"Thanks for the fiber-optics revolution, Mr Kao!"},"content":{"rendered":"\nThis month marks the fiftieth anniversary since Charles Kao had a brainwave without which today\u2019s broadband communications would be inconceivable &#8211; and Retarus, too. With a <a href=\"https:\/\/ieeexplore.ieee.org\/xpl\/articleDetails.jsp?arnumber=5250060\">paper published in the July 1966 issue of \u201cProceedings of the Institution of Electrical Engineers\u201d<\/a>\u00a0, Kao turned cutting-edge research into the deployment of lasers in telecommunications on its head. In fact, it was he who postulated that a glass fiber of sufficient purity would exhibit levels of attenuation low enough to carry signals over distances which would make it useful for telecommunications. <a href=\"https:\/\/de.wikipedia.org\/wiki\/Charles_Kuen_Kao\">Charles Kao<\/a> was <a href=\"https:\/\/spectrum.ieee.org\/tech-talk\/telecom\/internet\/how-charles-kao-beat-bell-labs-to-the-fiberoptic-revolution\">then working at Standard Telephone &amp; Cables<\/a> in the UK (which later became part of Nortel) under Antoni Karbowiak, who was attempting to manufacture hollow optical waveguides using plastic.\u00a0 Kao and several other researchers \u2013 for instance Rudolf Kompfner at Bell Labs in the US \u2013 knew that impurities in the glass fibers were posing the problem that prevented their use in telecommunications. <h2>Only a question of purity<\/h2> While Kompfner, faced with attenuation of thousands of decibels per kilometer in the very best glass available at that time, gave up and instead pursued research into hollow waveguides, Charles Kao sought high-purity materials to use in his fibers. Following Karbowiak\u2018s departure from STC to take up an academic position in Australia, Kao worked <a href=\"https:\/\/www.theregister.com\/2016\/07\/18\/happy_birthday_the_optical_fibre_revolution_is_50_years_old\/\">with Harold Rawson at the University of Sheffield<\/a> and published the 1966 paper in the IET journal together with his assistant George Hockham. This contribution was the catalyst for a raft of international research projects. Kao had originally asked Rawson whether attenuation of 20 decibels of attenuation per kilometer would be feasible. Remarkably, by 1979 American glass specialists Corning had already developed glass fibers which only displayed 0.2 decibels of attenuation per kilometer. This ensured that fiber optics would have a future in global communication networks. Charles Kao was awarded the <a href=\"https:\/\/www.theregister.com\/2009\/10\/06\/nobel_physics_prize\/\">2009 Nobel Prize for Physics<\/a> for his 1966 contribution, along with the inventors of Charge-Coupled Devices (CCDs). <h2>The bedrock\u00a0 of global messaging<\/h2> The perfect networking of global business\u00a0, Retarus\u2019 stated vision, would be inconceivable without fiber-optic cables. The seven data centers which make up Retarus\u2019 Global Delivery Network are each, for instance, normally connected to three tier 1 carriers and partly also interconnected with each other. Find out more about the technology and infrastructure which powers our information logistics <a href=\"https:\/\/www.retarus.com\/why-retarus\/technology-infrastructure\/\">here<\/a> or directly <a href=\"https:\/\/www.retarus.com\/contact\/\">from your local Retarus contact person<\/a>.\n","protected":false},"excerpt":{"rendered":"<p>This month marks the fiftieth anniversary since Charles Kao had a brainwave without which today\u2019s broadband communications would be inconceivable &#8211; and Retarus, too.<\/p>\n","protected":false},"author":14,"featured_media":10048,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"ret_read_more_text":"","ret_thumb_border":false,"footnotes":""},"categories":[3039],"tags":[1274,1411,1310],"ret_content_type":[3097],"class_list":["post-29268","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-digital-business-compliance","tag-cloud-services","tag-infrastructure","tag-innovation","ret_content_type-actualites-du-secteur"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.3 (Yoast SEO v28.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Fiber History<\/title>\n<meta name=\"description\" content=\"50 yrs ago Charles Kao had a brainwave without which today\u2019s broadband communications would be inconceivable - and Retarus, too.\" \/>\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.retarus.com\/blog\/fr\/thanks-for-the-fiber-optics-revolution-mr-kao\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Thanks for the fiber-optics revolution, Mr Kao!\" \/>\n<meta property=\"og:description\" content=\"This month marks the fiftieth anniversary since Charles Kao had a brainwave without which today\u2019s broadband communications would be inconceivable - and Retarus, too.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.retarus.com\/blog\/fr\/thanks-for-the-fiber-optics-revolution-mr-kao\/\" \/>\n<meta property=\"og:site_name\" content=\"Retarus Blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/retarus\" \/>\n<meta property=\"article:published_time\" content=\"2016-07-19T13:33:14+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-08-06T14:42:22+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.retarus.com\/blog-transfer\/wp-content\/uploads\/sites\/41\/2026\/07\/Autobahn_RoadLights_03_680x384-9.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"680\" \/>\n\t<meta property=\"og:image:height\" content=\"384\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Thomas Cloer\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@retarus\" \/>\n<meta name=\"twitter:site\" content=\"@retarus\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Thomas Cloer\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.retarus.com\\\/blog\\\/fr\\\/thanks-for-the-fiber-optics-revolution-mr-kao\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.retarus.com\\\/blog\\\/fr\\\/thanks-for-the-fiber-optics-revolution-mr-kao\\\/\"},\"author\":{\"name\":\"Thomas Cloer\",\"@id\":\"https:\\\/\\\/www.retarus.com\\\/blog\\\/fr\\\/#\\\/schema\\\/person\\\/7f8954d8bf84d75cf384942c5f6cf2e5\"},\"headline\":\"Thanks for the fiber-optics revolution, Mr Kao!\",\"datePublished\":\"2016-07-19T13:33:14+00:00\",\"dateModified\":\"2026-08-06T14:42:22+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.retarus.com\\\/blog\\\/fr\\\/thanks-for-the-fiber-optics-revolution-mr-kao\\\/\"},\"wordCount\":391,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.retarus.com\\\/blog\\\/fr\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.retarus.com\\\/blog\\\/fr\\\/thanks-for-the-fiber-optics-revolution-mr-kao\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.retarus.com\\\/blog\\\/wp-content\\\/uploads\\\/sites\\\/41\\\/2026\\\/07\\\/Autobahn_RoadLights_03_680x384-9.jpg\",\"keywords\":[\"Cloud Services\",\"Infrastructure\",\"innovation\"],\"articleSection\":[\"Digital Business &amp; 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