{"id":1514,"date":"2017-05-24T15:57:36","date_gmt":"2017-05-24T19:57:36","guid":{"rendered":"https:\/\/www.precisionot.com\/?p=1514"},"modified":"2020-12-17T02:40:17","modified_gmt":"2020-12-17T07:40:17","slug":"traitement-du-signal-photonique-par-pipeline","status":"publish","type":"post","link":"https:\/\/www.precisionot.com\/fr\/pipeline-photonic-signal-processing\/","title":{"rendered":"Dans le pipeline\u00a0: traitement du signal photonique"},"content":{"rendered":"<p class=\"wp-block-paragraph\">L&#039;utilisation de l&#039;inscription de grilles de Bragg sur des fibres individuelles a le potentiel de r\u00e9volutionner les circuits logiques de transmission et de r\u00e9ception photoniques. Bien que les portes de Bragg aient \u00e9t\u00e9 utilis\u00e9es comme filtres dans le pass\u00e9, c&#039;est la composante r\u00e9fl\u00e9chie et non la composante transmise qui n&#039;a commenc\u00e9 \u00e0 \u00eatre utilis\u00e9e que r\u00e9cemment. La pionni\u00e8re espagnole de la photonique Ivana Gasulla a r\u00e9cemment cr\u00e9\u00e9 une cavit\u00e9 temporis\u00e9e en inscrivant des grilles de Bragg sur des c\u0153urs individuels d&#039;une fibre multic\u0153ur (MCF).<a href=\"http:\/\/www.nature.com\/articles\/srep41727#f7\" target=\"_blank\" rel=\"noopener\">\u207d\u00b9\u207e<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cette nouvelle utilisation de la grille de Bragg est rendue possible par l&#039;utilisation brillante de lentilles, de miroirs et de masques avec des transducteurs pi\u00e9zo\u00e9lectriques pour focaliser, viser et collimater le faisceau de transcription. La fibre multic\u0153ur est suspendue entre deux supports CNC qui font tourner le MCF selon les besoins pour inscrire chaque fibre individuelle avec une porte apodis\u00e9e pr\u00e9cise pour refl\u00e9ter la fr\u00e9quence souhait\u00e9e. Le dispositif de transcription par fibre d&#039;Ivana Gasulla poss\u00e8de \u00e9galement une fonction de traduction assist\u00e9e par ordinateur qui permet la structuration de plusieurs portes de Bragg sur la m\u00eame longueur de fibre. Cette nouvelle m\u00e9thode sera probablement utilis\u00e9e dans les circuits logiques des \u00e9metteurs-r\u00e9cepteurs \u00e0 l&#039;avenir car elle a la capacit\u00e9 de r\u00e9soudre les fr\u00e9quences individuelles et de cr\u00e9er des retards diff\u00e9rentiels entre elles. Cette nouvelle technologie fournira une logique de fibre optique r\u00e2p\u00e9e qui a le potentiel de supplanter certains circuits de silicium \u00e0 semi-conducteurs contemporains, entra\u00eenant une baisse des prix, de la taille et du poids.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Et pour ceux qui pensent que la limite du traitement de l&#039;information a d\u00e9j\u00e0 \u00e9t\u00e9 atteinte ; d\u00e9trompez-vous. La technologie pour fabriquer ces nouveaux composants existe d\u00e9j\u00e0 et l&#039;utilit\u00e9 n&#039;est limit\u00e9e que par l&#039;imagination des ing\u00e9nieurs \u00e9lectriciens et optiques.<\/p>","protected":false},"excerpt":{"rendered":"<p>L&#039;utilisation de l&#039;inscription de grilles de Bragg sur des fibres individuelles a le potentiel de r\u00e9volutionner les circuits logiques de transmission et de r\u00e9ception photoniques.<\/p>","protected":false},"author":2,"featured_media":1515,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"content-type":"","site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[6],"tags":[],"class_list":["post-1514","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.precisionot.com\/fr\/wp-json\/wp\/v2\/posts\/1514","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.precisionot.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.precisionot.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.precisionot.com\/fr\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.precisionot.com\/fr\/wp-json\/wp\/v2\/comments?post=1514"}],"version-history":[{"count":0,"href":"https:\/\/www.precisionot.com\/fr\/wp-json\/wp\/v2\/posts\/1514\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.precisionot.com\/fr\/wp-json\/wp\/v2\/media\/1515"}],"wp:attachment":[{"href":"https:\/\/www.precisionot.com\/fr\/wp-json\/wp\/v2\/media?parent=1514"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.precisionot.com\/fr\/wp-json\/wp\/v2\/categories?post=1514"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.precisionot.com\/fr\/wp-json\/wp\/v2\/tags?post=1514"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}