{"id":1298,"date":"2024-02-09T20:18:38","date_gmt":"2024-02-09T19:18:38","guid":{"rendered":"https:\/\/www.cailabs.com?page_id=1298"},"modified":"2025-07-01T16:10:35","modified_gmt":"2025-07-01T14:10:35","slug":"communications-laser-line-of-sight-civiles","status":"publish","type":"page","link":"https:\/\/www.cailabs.com\/fr\/aerospatial-defense\/communications-laser\/communications-laser-line-of-sight-civiles\/","title":{"rendered":"Communications laser Line-of-Sight civiles"},"content":{"rendered":"\n<div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\">\n<h1 class=\"wp-block-heading has-text-align-center\">Communications laser point \u00e0 point civiles<\/h1>\n<\/div>\n\n\n\n<div class=\"wp-block-cover alignfull\"><img loading=\"lazy\" decoding=\"async\" width=\"1150\" height=\"500\" class=\"wp-block-cover__image-background wp-image-1300\" alt=\"Communications laser Line-of-Sight civiles\" src=\"https:\/\/www.cailabs.com\/app\/uploads\/2024\/02\/communication-laser-line-of-sight-civiles-1150x500-1.png\" data-object-fit=\"cover\" srcset=\"https:\/\/www.cailabs.com\/app\/uploads\/2024\/02\/communication-laser-line-of-sight-civiles-1150x500-1.png 1150w, https:\/\/www.cailabs.com\/app\/uploads\/2024\/02\/communication-laser-line-of-sight-civiles-1150x500-1-300x130.png 300w, https:\/\/www.cailabs.com\/app\/uploads\/2024\/02\/communication-laser-line-of-sight-civiles-1150x500-1-1024x445.png 1024w, https:\/\/www.cailabs.com\/app\/uploads\/2024\/02\/communication-laser-line-of-sight-civiles-1150x500-1-768x334.png 768w\" sizes=\"auto, (max-width: 1150px) 100vw, 1150px\" \/><span aria-hidden=\"true\" class=\"wp-block-cover__background has-background-dim\"><\/span><div class=\"wp-block-cover__inner-container is-layout-constrained wp-block-cover-is-layout-constrained\">\n<p class=\"has-text-align-center has-large-font-size wp-block-paragraph\"><strong>Les terminaux optiques TILBA\u00ae-LOS permettent d\u2019\u00e9tablir des r\u00e9seaux de communications laser line-of-sight tr\u00e8s haut d\u00e9bit<\/strong><\/p>\n<\/div><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">La plupart des \u00e9changes d\u2019informations, aujourd\u2019hui, se font via des r\u00e9seaux terrestres. Pr\u00e8s de 99 % de ces communications transitent par la fibre optique, tandis que le pourcentage restant est constitu\u00e9 de signaux radiofr\u00e9quences et de faisceaux hertziens. Toutefois, ces moyens de communication pr\u00e9sentent certaines limites en termes d\u2019accessibilit\u00e9, de s\u00e9curit\u00e9 et de r\u00e9silience. Les communications optiques dites&nbsp;<em>line-of-sight<\/em>&nbsp;offrent une solution fiable pour surmonter les limites inh\u00e9rentes aux communications terrestres traditionnelles.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La communication laser point \u00e0 point est une m\u00e9thode de transmission d\u2019informations sans fil, bas\u00e9e sur la propagation de la lumi\u00e8re dans le vide et dans l\u2019air. Elle repose sur l\u2019utilisation de terminaux optiques pour transmettre un signal d\u2019un point A \u00e0 un point B, en passant \u00e9ventuellement par des terminaux interm\u00e9diaires. Ces terminaux sont dot\u00e9s de syst\u00e8mes optiques qui assurent l\u2019\u00e9mission, la r\u00e9ception et le relais du signal. Pour garantir une communication efficace, les terminaux doivent \u00eatre parfaitement align\u00e9s. Toutefois, leur emplacement offre une grande flexibilit\u00e9, puisque les terminaux peuvent \u00eatre install\u00e9s sur divers supports tels que les toits de b\u00e2timents ou suspendus \u00e0 des structures verticales.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La communication optique en espace libre, \u00e9galement connue sous le nom de Free Space Optics, a \u00e9merg\u00e9 dans les ann\u00e9es 90 et est utilis\u00e9e depuis lors comme une alternative int\u00e9ressante aux m\u00e9thodes traditionnelles de transmission de donn\u00e9es. Elle est utilis\u00e9e dans diverses applications telles que les t\u00e9l\u00e9communications et le transfert s\u00e9curis\u00e9 de donn\u00e9es. De plus, la technologie FSO s\u2019av\u00e8re particuli\u00e8rement adapt\u00e9e pour le d\u00e9ploiement de r\u00e9seaux locaux et temporaires.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.cailabs.com\/application\/communications-laser-line-of-sight-civiles\/#_ftnref1\"><\/a><\/p>\n\n\n\n<h5 class=\"wp-block-heading\"><strong>Panorama des applications des communications LOS civiles \u202f:&nbsp;<\/strong><\/h5>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>R\u00e9seaux d\u00e9di\u00e9s<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les liaisons optiques&nbsp;<em>line-of-sight<\/em>&nbsp;(LOS) sont id\u00e9ales pour les communications \u00e0 haut d\u00e9bit entre b\u00e2timents au sein d\u2019un parc d\u2019activit\u00e9s, tel qu\u2019un site industriel, un campus universitaire ou bien un complexe gouvernemental. Elles permettent de connecter les b\u00e2timents \u00e0 l\u2019aide de terminaux optiques, cr\u00e9ant ainsi un r\u00e9seau d\u00e9di\u00e9 ou compl\u00e9tant un r\u00e9seau existant, sans perturber les activit\u00e9s en cours par des travaux de c\u00e2blage.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Dernier km<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Dans les zones urbaines les&nbsp;<em>transceivers<\/em>&nbsp;optiques permettent de combler rapidement le foss\u00e9 du dernier kilom\u00e8tre entre l\u2019infrastructure de t\u00e9l\u00e9communication et les utilisateurs finaux non connect\u00e9s, sans n\u00e9cessiter le d\u00e9ploiement complexe d\u2019une infrastructure \u00e0 base de fibre optique.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Accessibilit\u00e9<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">De la m\u00eame mani\u00e8re un r\u00e9seau optique permet de connecter des zones isol\u00e9s ou difficiles d\u2019acc\u00e8s o\u00f9 l\u2019infrastructure de t\u00e9l\u00e9communication n\u2019existe pas et peut \u00eatre difficile \u00e0 d\u00e9ployer. La communication optique est une solution efficace pour connecter des utilisateurs isol\u00e9s dans des zones rurales ou sur des \u00eeles aux r\u00e9seaux t\u00e9l\u00e9phoniques, Internet et TV, ou pour relier des zones d\u2019activit\u00e9 \u00e0 distance telles que des plates-formes offshore et des \u00e9oliennes.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Data centers<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les LOS peuvent \u00eatre utilis\u00e9s pour acc\u00e9l\u00e9rer la transmission d\u2019informations entre centres de donn\u00e9es et garantir une transmission de donn\u00e9es plus s\u00e9curis\u00e9e, tout en servant de solution de backup pour un r\u00e9seau existant. L\u2019optique r\u00e9pond aux besoins critiques d\u2019un data center, tels que le transfert s\u00e9curis\u00e9 de donn\u00e9es \u00e0 haut d\u00e9bit et \u00e0 faible latence, permettant une r\u00e9plication, une sauvegarde et un transfert efficaces des donn\u00e9es. De plus, elle permet de relier plus efficacement des centres de donn\u00e9es g\u00e9ographiquement dispers\u00e9s et peut \u00eatre utilis\u00e9e comme r\u00e9seau de secours pour assurer une reprise rapide apr\u00e8s sinistre.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Reprise apr\u00e8s sinistre<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Dans les zones sinistr\u00e9es o\u00f9 l\u2019infrastructure de communication a \u00e9t\u00e9 endommag\u00e9e ou d\u00e9truite, les FSO peuvent servir de solution de communication d\u2019urgence. Le d\u00e9ploiement de liaisons optiques permet de r\u00e9tablir rapidement la communication facilitant ainsi les efforts d\u2019intervention.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>D\u00e9ploiements temporaires<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les liaisons LOS conviennent \u00e9galement aux besoins de connectivit\u00e9 temporaire sur des chantiers de construction ou dans l\u2019\u00e9v\u00e9nementiel. Elles permettent une installation et un d\u00e9montage rapides du r\u00e9seau de communication, sans n\u00e9cessiter la mise en place l\u2019infrastructure permanente. Cela permet de b\u00e9n\u00e9ficier d\u2019une connectivit\u00e9 flexible et fiable dans le cadre d\u2019op\u00e9rations temporaires, facilitant ainsi la mise en place de syst\u00e8mes de communications adapt\u00e9es aux besoins sp\u00e9cifiques de chaque \u00e9v\u00e9nement ou projet.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les communications terrestres actuelles utilisent diff\u00e9rentes technologies comme : la fibre optique pour une connectivit\u00e9 haut d\u00e9bit sur de longues distances, mais \u00e9galement les r\u00e9seaux cuivre pour les services locaux d\u2019Internet et de t\u00e9l\u00e9communication, les r\u00e9seaux cellulaires bas\u00e9s sur la 4G LTE et 5G pour une communication sans fil sur de larges zones, les communications radio pour les syst\u00e8mes sans fil sp\u00e9cialis\u00e9s, la communication par ligne \u00e9lectrique pour transmettre des donn\u00e9s \u00e0 travers les r\u00e9seaux \u00e9lectriques existants et les liaisons micro-ondes ou faisceaux hertziens permettant d\u2019\u00e9tablir des connexions point \u00e0 point dans des situations o\u00f9 le c\u00e2blage physique est difficile.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Alors que les fibres optiques restent le moyen privil\u00e9gi\u00e9 pour assurer une connectivit\u00e9 fiable \u00e0 longue distance, le d\u00e9ploiement de c\u00e2blage en fibre optique peut \u00eatre complexe, voire impossible, dans certaines situations. Il devient donc essentiel de trouver des solutions alternatives r\u00e9pondant \u00e0 des besoins sp\u00e9cifiques. Cependant, les m\u00e9thodes alternatives ont \u00e9galement certaines limitations. La plupart des solutions de communication terrestre reposent sur des infrastructures existantes, qui sont co\u00fbteuses et complexes \u00e0 d\u00e9ployer ou \u00e0 \u00e9tendre vers des zones non connect\u00e9es.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La fr\u00e9quence radio (RF), historiquement utilis\u00e9e pour les communications sans fil, est sensible aux interf\u00e9rences \u00e9lectromagn\u00e9tiques et n\u00e9cessite des licences pour op\u00e9rer dans des bandes de fr\u00e9quences d\u00e9sign\u00e9es. En raison du nombre limit\u00e9 de licences disponibles, leur obtention est particuli\u00e8rement difficile, surtout pour les nouveaux arrivants faisant face \u00e0 une concurrence accrue due \u00e0 l\u2019expansion rapide des r\u00e9seaux 5G. D\u2019autre part, les r\u00e9seaux actuels, peinent \u00e0 r\u00e9pondre aux exigences croissantes en termes de faible latence, haut d\u00e9bit et s\u00e9curit\u00e9 des donn\u00e9es qui sont vitales \u00e0 certaines applications.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Les communications laser&nbsp;<em>line-of-sight<\/em>&nbsp;pr\u00e9sentent une solution de communication point \u00e0 point fiable permettant de r\u00e9pondre aux besoins croissants de r\u00e9seaux \u00e0 tr\u00e8s haut d\u00e9bit, faible latence, flexibles et s\u00e9curis\u00e9s.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les solutions laser&nbsp;<em>line-of-sight<\/em>&nbsp;apportent des avantages significatifs et des capacit\u00e9s suppl\u00e9mentaires par rapport aux technologies filaires et sans fil traditionnellement utilis\u00e9s comme alternative \u00e0 la fibre optique. Elles offrent une capacit\u00e9 de bande passante plus \u00e9lev\u00e9e, une s\u00e9curit\u00e9 renforc\u00e9e et une connectivit\u00e9 directe point \u00e0 point. Les communications laser sont immunis\u00e9es contre les interf\u00e9rences \u00e9lectromagn\u00e9tiques, le brouillage, peuvent \u00eatre d\u00e9ploy\u00e9es rapidement et n\u00e9cessitent une infrastructure minimale. Elles offrent une faible latence et conviennent aux applications en temps r\u00e9el. De plus, elles ont l\u2019avantage d\u2019\u00eatre compatibles avec les technologies t\u00e9l\u00e9coms terrestres ultra haute capacit\u00e9 (jusqu\u2019\u00e0 plusieurs Tbitps), b\u00e9n\u00e9ficiant ainsi de la maturit\u00e9 technologique de l\u2019industrie t\u00e9l\u00e9coms.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cependant, les communications laser ont historiquement fait face \u00e0 un d\u00e9fi important : la turbulence atmosph\u00e9rique. En effet, les perturbations caus\u00e9es par l\u2019h\u00e9t\u00e9rog\u00e9n\u00e9it\u00e9 et les mouvements permanents de l\u2019air, affectent la phase et l\u2019intensit\u00e9 du faisceau lumineux, d\u00e9gradant ainsi la qualit\u00e9 du lien lorsqu\u2019il traverse l\u2019atmosph\u00e8re terrestre. Pour les communications&nbsp;<em>line-of-sight<\/em>, cela peut impliquer une diminution du d\u00e9bit, de la port\u00e9e et de la disponibilit\u00e9 du signal. N\u00e9anmoins, plusieurs solutions existent pour g\u00e9rer ces perturbations atmosph\u00e9riques<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">S\u2019appuyant sur sa technologie&nbsp;Multi-Plane Light Conversion (MPLC), Cailabs a d\u00e9velopp\u00e9 un terminal optique capable de compenser la turbulence atmosph\u00e9rique pour garder vos transmissions intactes. Les&nbsp;terminaux optiques&nbsp;<a href=\"https:\/\/www.cailabs.com\/fr\/aerospatial-defense\/communications-laser\/terminaux-de-liaisons-optiques-point-a-point\/\">TILBA\u00ae-LOS<\/a>&nbsp;d\u00e9di\u00e9s aux communications&nbsp;<em>line-of-sight<\/em>&nbsp;permettent d\u2019\u00e9tablir vos r\u00e9seaux de communication optiques s\u00e9curis\u00e9s de 10 Gbps sur des distances allant jusqu\u2019\u00e0 10km en&nbsp;&nbsp;:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Permettant des communications optiques point \u00e0 point au-del\u00e0 de 10&nbsp;Gbps<\/li>\n\n\n\n<li>Augmentant la port\u00e9e et la robustesse des communications laser en pr\u00e9sence de turbulence atmosph\u00e9rique gr\u00e2ce \u00e0 la technologie de combinaison incoh\u00e9rente,&nbsp;<strong><a href=\"https:\/\/www.cailabs.com\/fr\/aerospatial-defense\/communications-laser\/briques-technologiques\/#tilba-ibc\">TILBA\u00ae-IBC<\/a><\/strong>&nbsp;int\u00e9gr\u00e9 au c\u0153ur du terminal optique.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Cailabs a r\u00e9alis\u00e9 avec succ\u00e8s des liaisons de communication laser sol-sol sur une distance de 1 km \u00e0 travers l\u2019atmosph\u00e8re en environnement urbain, atteignant un d\u00e9bit de 10 Gbps. Ceci a pu \u00eatre r\u00e9alis\u00e9 gr\u00e2ce \u00e0 la technologie de combinaison incoh\u00e9rente,&nbsp;TILBA\u00ae-IBC. Nous sommes d\u00e9sormais&nbsp;en pr\u00e9paration pour une d\u00e9monstration de liaison espace-sol.<\/p>\n\n\n<section class=\"acf slider-dapplications aligncenter is-style-centered wp-block-acf-slider-dapplications\" id=\"block_3852a398134e00ff4254f59fb3cefc85\">\n\t<div class=\"container container__large\">\n\t\t\t\t\t<h2>Nos autres applications<\/h2>\n\t\t\t\t\t\t\t<div class=\"slider-dapplications__applications swiper\">\n\t\t\t\t<div class=\"swiper-wrapper\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.cailabs.com\/fr\/aerospatial-defense\/communications-laser\/communications-gouvernementales\/\" class=\"slider-dapplications__application swiper-slide\">\n\t\t\t\t\t\t\t\t<strong class=\"slider-dapplications__application_title\">Communications gouvernementales<\/strong>\n\t\t\t\t\t\t\t\t<div class=\"slider-dapplications__application_img\">\n\t\t\t\t\t\t\t\t\t<picture>\n\t\t\t\t\t\t\t\t\t\t<source type=\"image\/webp\" srcset=\"https:\/\/www.cailabs.com\/app\/uploads\/2025\/06\/communications-gouvernementales_adobestock_492063435-2960x917-1-350x500-c-1.webp, https:\/\/www.cailabs.com\/app\/uploads\/2025\/06\/communications-gouvernementales_adobestock_492063435-2960x917-1-350x500-c-1@2x.webp 2x\">\n\t\t\t\t\t\t\t\t\t\t<source type=\"image\/jpeg\" srcset=\"https:\/\/www.cailabs.com\/app\/uploads\/2025\/06\/communications-gouvernementales_adobestock_492063435-2960x917-1-350x500-c-1.jpg, https:\/\/www.cailabs.com\/app\/uploads\/2025\/06\/communications-gouvernementales_adobestock_492063435-2960x917-1-350x500-c-1@2x.jpg 2x\">\n\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.cailabs.com\/app\/uploads\/2025\/06\/communications-gouvernementales_adobestock_492063435-2960x917-1-350x500-c-1.jpg\" alt=\"Government communications\" width=\"320\" height=\"430\"\/>\n\t\t\t\t\t\t\t\t\t<\/picture>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.cailabs.com\/fr\/aerospatial-defense\/communications-laser\/communications-militaires-terrestres\/\" class=\"slider-dapplications__application swiper-slide\">\n\t\t\t\t\t\t\t\t<strong class=\"slider-dapplications__application_title\">Communications militaires terrestres <\/strong>\n\t\t\t\t\t\t\t\t<div class=\"slider-dapplications__application_img\">\n\t\t\t\t\t\t\t\t\t<picture>\n\t\t\t\t\t\t\t\t\t\t<source type=\"image\/webp\" srcset=\"https:\/\/www.cailabs.com\/app\/uploads\/2025\/06\/communications-militaires-terrestres-2560x917-1-350x500-c-1.webp, https:\/\/www.cailabs.com\/app\/uploads\/2025\/06\/communications-militaires-terrestres-2560x917-1-350x500-c-1@2x.webp 2x\">\n\t\t\t\t\t\t\t\t\t\t<source type=\"image\/jpeg\" srcset=\"https:\/\/www.cailabs.com\/app\/uploads\/2025\/06\/communications-militaires-terrestres-2560x917-1-350x500-c-1.jpg, https:\/\/www.cailabs.com\/app\/uploads\/2025\/06\/communications-militaires-terrestres-2560x917-1-350x500-c-1@2x.jpg 2x\">\n\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.cailabs.com\/app\/uploads\/2025\/06\/communications-militaires-terrestres-2560x917-1-350x500-c-1.jpg\" alt=\"Communications militaires terrestres\" width=\"320\" height=\"430\"\/>\n\t\t\t\t\t\t\t\t\t<\/picture>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.cailabs.com\/fr\/aerospatial-defense\/communications-laser\/communications-en-operations-navales\/\" class=\"slider-dapplications__application swiper-slide\">\n\t\t\t\t\t\t\t\t<strong class=\"slider-dapplications__application_title\">Communications en op\u00e9rations navales<\/strong>\n\t\t\t\t\t\t\t\t<div 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