{"id":667,"date":"2021-01-06T18:02:33","date_gmt":"2021-01-06T17:02:33","guid":{"rendered":"https:\/\/parlonstechs.com\/all\/?p=667"},"modified":"2021-01-06T18:03:06","modified_gmt":"2021-01-06T17:03:06","slug":"fibre-optique-quest-ce-que-cest","status":"publish","type":"post","link":"https:\/\/parlonstechs.com\/all\/2021\/01\/06\/fibre-optique-quest-ce-que-cest\/","title":{"rendered":"Fibre optique : Qu&rsquo;est-ce que c&rsquo;est ?"},"content":{"rendered":"\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/cdn.futura-sciences.com\/buildsv6\/images\/wide1920\/5\/2\/6\/5264a7e333_99911_fibre-optique-principe-fonctionnement.jpg\" alt=\"D\u00e9finition | Fibre optique | Futura Tech\"\/><\/figure>\n\n\n\n<p style=\"font-size:24px\"><strong>La fibre optique est un c\u00e2ble permettant de propager des ondes lumineuses entre deux lieux. La\u00a0lumi\u00e8re\u00a0est conduite sans perte au c\u0153ur du c\u00e2ble, et elle suit les \u00e9ventuelles courbures de son support.<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Dans quels domaines peut \u00eatre utilis\u00e9e une fibre optique&nbsp;?<\/h2>\n\n\n\n<p>La fibre optique est g\u00e9n\u00e9ralement utilis\u00e9e en informatique, pour la transmission de donn\u00e9es \u00e0 tr\u00e8s haut\u00a0d\u00e9bit\u00a0et sur de grandes distances. Toutefois, elle poss\u00e8de d&rsquo;autres\u00a0applications\u00a0r\u00e9pandues comme en m\u00e9decine (on parle alors de fibroscopie), en automatisation (pour les mesures en temps r\u00e9el des\u00a0capteurs), ou en \u00e9clairage d\u00e9coratif.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Quels sont les avantages de la fibre optique&nbsp;?<\/h2>\n\n\n\n<p>Dans les r\u00e9seaux de t\u00e9l\u00e9communications, la fibre optique est particuli\u00e8rement appr\u00e9ci\u00e9e pour son att\u00e9nuation tr\u00e8s faible et ses d\u00e9bits tr\u00e8s \u00e9lev\u00e9s. Ces caract\u00e9ristiques font de la fibre optique la meilleure solution disponible pour transmettre des donn\u00e9es sur de grandes distances, comme dans le cas des c\u00e2bles\u00a0sous-marins\u00a0intercontinentaux. De plus, la fibre optique est insensible aux\u00a0interf\u00e9rences\u00a0\u00e9lectromagn\u00e9tiques. Elle est donc fortement utilis\u00e9e par les arm\u00e9es et les entreprises exigeant\u00a0une importante fiabilit\u00e9, ou dans les environnements o\u00f9 les c\u00e2bles de\u00a0cuivre\u00a0seraient perturb\u00e9s par des ondes\u00a0radio\u00a0ou de forts\u00a0courants \u00e9lectriques.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u00c0 quoi sert la fibre optique pour l\u2019acc\u00e8s \u00e0 Internet&nbsp;?<\/h2>\n\n\n\n<p>Initialement, la fibre optique ne servait qu&rsquo;\u00e0 connecter les centraux t\u00e9l\u00e9phoniques ou les continents entre eux. Avec l&rsquo;accroissement des besoins des entreprises et des particuliers en tr\u00e8s haut d\u00e9bit, la desserte par fibre optique se fait maintenant jusqu&rsquo;en bas de l&rsquo;immeuble (FTTB) et surtout, pour des performances optimales, jusqu&rsquo;au logement (FTTH).<\/p>\n\n\n\n<p>Cette technologie augmente sensiblement les d\u00e9bits par rapport \u00e0 l&rsquo;ADSL, et fait baisser la latence \u00e0 quelques millisecondes seulement. Il en r\u00e9sulte des t\u00e9l\u00e9chargements bien plus rapides et un meilleur confort d&rsquo;utilisation dans le cadre de la\u00a0visioconf\u00e9rence\u00a0ou des jeux en ligne.<\/p>\n\n\n\n<p>\u00c0 l&rsquo;inverse de l&rsquo;ADSL, la fibre optique offre un d\u00e9bit sym\u00e9trique, et donc un d\u00e9bit d&rsquo;\u00e9mission\u00a0et de r\u00e9ception \u00e9quivalents. Elle permet ainsi de nouveaux usages comme le stockage\u00a0NAS\u00a0\u00e0 domicile, ou l&rsquo;envoi de flux vid\u00e9o en Ultra Haute D\u00e9finition.<\/p>\n\n\n\n<p>Avec Futura<\/p>\n","protected":false},"excerpt":{"rendered":"<p>La fibre optique est un c\u00e2ble permettant de propager des ondes lumineuses entre deux lieux. La\u00a0lumi\u00e8re\u00a0est conduite sans perte au c\u0153ur du c\u00e2ble, et elle suit les \u00e9ventuelles courbures de [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":668,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[21,117,6],"tags":[],"class_list":["post-667","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualite","category-ckoi","category-telecom"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Fibre optique : Qu&#039;est-ce que c&#039;est ? - Parlons Techs - Store<\/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:\/\/parlonstechs.com\/all\/2021\/01\/06\/fibre-optique-quest-ce-que-cest\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Fibre optique : Qu&#039;est-ce que c&#039;est ? - Parlons Techs - Store\" \/>\n<meta property=\"og:description\" content=\"La fibre optique est un c\u00e2ble permettant de propager des ondes lumineuses entre deux lieux. 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