{"id":608,"date":"2023-09-12T14:04:56","date_gmt":"2023-09-12T12:04:56","guid":{"rendered":"https:\/\/www.institut-foton.eu\/?p=608"},"modified":"2025-04-22T12:00:18","modified_gmt":"2025-04-22T10:00:18","slug":"optique-hyperfrequence-et-thz","status":"publish","type":"post","link":"https:\/\/www.institut-foton.eu\/en\/optique-hyperfrequence-et-thz\/","title":{"rendered":"THz and microwave photonics"},"content":{"rendered":"\n<p>The DOP team develops various optical sources with very high spectral purity for applications in microwave photonics.  Spectral control based on Brillouin effect and spectral narrowing techniques enable to implement self-adaptive photonic oscillators. Different optical architectures are investigated for the generation of RF or THz signals: beating of two optical frequencies locked to a cavity, dual-frequency lasers, opto-electronic oscillators or even frequency combs generated in frequency-shifting loops. We also develop all-optical techniques for antenna control, millimeter carrier communications and signal processing. Some of these functionalities are also implemented in photonic integrated circuits (PICs).<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"block-2ca28978-0a03-468b-b503-828f6e84e714\">Related research activities<\/h2>\n\n\n\n<div class=\"wp-block-query is-layout-flow wp-block-query-is-layout-flow\"><ul class=\"columns-3 wp-block-post-template is-layout-grid wp-container-core-post-template-is-layout-6d3fbd8f wp-block-post-template-is-layout-grid\"><li class=\"wp-block-post post-4494 post type-post status-publish format-standard has-post-thumbnail hentry category-activites tag-generation-mise-en-forme-et-traitement-du-signal tag-departement-dop tag-opto-hyper-terahertz tag-axe2\">\n<figure style=\"aspect-ratio:4\/3;height:250px;\" class=\"alignwide wp-block-post-featured-image\"><a href=\"https:\/\/www.institut-foton.eu\/en\/boucles-decalage-frequence\/\" target=\"_self\"  style=\"height:250px\"><img loading=\"lazy\" decoding=\"async\" width=\"1364\" height=\"713\" src=\"https:\/\/www.institut-foton.eu\/wp-content\/uploads\/2023\/10\/Image_Boucles-a-decalage-de-frequence.jpg\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"Frequency shifting loops\" style=\"width:100%;height:100%;object-fit:cover;\" srcset=\"https:\/\/www.institut-foton.eu\/wp-content\/uploads\/2023\/10\/Image_Boucles-a-decalage-de-frequence.jpg 1364w, https:\/\/www.institut-foton.eu\/wp-content\/uploads\/2023\/10\/Image_Boucles-a-decalage-de-frequence-300x157.jpg 300w, https:\/\/www.institut-foton.eu\/wp-content\/uploads\/2023\/10\/Image_Boucles-a-decalage-de-frequence-1024x535.jpg 1024w, https:\/\/www.institut-foton.eu\/wp-content\/uploads\/2023\/10\/Image_Boucles-a-decalage-de-frequence-768x401.jpg 768w\" sizes=\"auto, (max-width: 1364px) 100vw, 1364px\" \/><\/a><\/figure>\n\n<h3 class=\"wp-block-post-title\"><a href=\"https:\/\/www.institut-foton.eu\/en\/boucles-decalage-frequence\/\" target=\"_self\" >Frequency shifting loops<\/a><\/h3>\n\n<div style=\"font-size:5px;\" class=\"has-text-align-left wp-block-post-excerpt\"><p class=\"wp-block-post-excerpt__excerpt\">Presentation Frequency-shifting loops are a simple architecture for generating frequency combs by recirculation of a continuous laser in a loop containing a modulator. We study the behavior of these systems in different configurations (acousto-optic modulator, phase or electro-optic amplitude modulator),<\/p><p class=\"wp-block-post-excerpt__more-text\"><a class=\"wp-block-post-excerpt__more-link\" href=\"https:\/\/www.institut-foton.eu\/en\/boucles-decalage-frequence\/\">\u2192 Lire la suite<\/a><\/p><\/div>\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n<\/li><li class=\"wp-block-post post-4769 post type-post status-publish format-standard has-post-thumbnail hentry category-activites tag-generation-mise-en-forme-et-traitement-du-signal tag-departement-dop tag-opto-hyper-terahertz tag-axe2\">\n<figure style=\"aspect-ratio:4\/3;height:250px;\" class=\"alignwide wp-block-post-featured-image\"><a href=\"https:\/\/www.institut-foton.eu\/en\/synthese-de-frequences-rf-et-thz\/\" target=\"_self\"  style=\"height:250px\"><img loading=\"lazy\" decoding=\"async\" width=\"736\" height=\"980\" src=\"https:\/\/www.institut-foton.eu\/wp-content\/uploads\/2023\/10\/RF-et-THz-image1.jpg\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"Synthesis of RF and THz signals\" style=\"width:100%;height:100%;object-fit:cover;\" srcset=\"https:\/\/www.institut-foton.eu\/wp-content\/uploads\/2023\/10\/RF-et-THz-image1.jpg 736w, https:\/\/www.institut-foton.eu\/wp-content\/uploads\/2023\/10\/RF-et-THz-image1-225x300.jpg 225w\" sizes=\"auto, (max-width: 736px) 100vw, 736px\" \/><\/a><\/figure>\n\n<h3 class=\"wp-block-post-title\"><a href=\"https:\/\/www.institut-foton.eu\/en\/synthese-de-frequences-rf-et-thz\/\" target=\"_self\" >Synthesis of RF and THz signals<\/a><\/h3>\n\n<div style=\"font-size:5px;\" class=\"has-text-align-left wp-block-post-excerpt\"><p class=\"wp-block-post-excerpt__excerpt\">Presentation The interference of two laser carriers on the same transverse mode and on the same polarization produces, on a photodetector, a the frequency difference between the two carriers. Manipulations combining photonic and electronic techniques make it possible to have<\/p><p class=\"wp-block-post-excerpt__more-text\"><a class=\"wp-block-post-excerpt__more-link\" href=\"https:\/\/www.institut-foton.eu\/en\/synthese-de-frequences-rf-et-thz\/\">\u2192 Lire la suite<\/a><\/p><\/div>\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n<\/li><li class=\"wp-block-post post-8091 post type-post status-publish format-standard has-post-thumbnail hentry category-activites tag-generation-mise-en-forme-et-traitement-du-signal tag-opto-hyper-terahertz tag-axe2\">\n<figure style=\"aspect-ratio:4\/3;height:250px;\" class=\"alignwide wp-block-post-featured-image\"><a href=\"https:\/\/www.institut-foton.eu\/en\/circuits-photoniques-integres\/\" target=\"_self\"  style=\"height:250px\"><img loading=\"lazy\" decoding=\"async\" width=\"669\" height=\"410\" src=\"https:\/\/www.institut-foton.eu\/wp-content\/uploads\/2024\/02\/image-20.png\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"Circuits photoniques int\u00e9gr\u00e9s\" style=\"width:100%;height:100%;object-fit:cover;\" srcset=\"https:\/\/www.institut-foton.eu\/wp-content\/uploads\/2024\/02\/image-20.png 669w, https:\/\/www.institut-foton.eu\/wp-content\/uploads\/2024\/02\/image-20-300x184.png 300w\" sizes=\"auto, (max-width: 669px) 100vw, 669px\" \/><\/a><\/figure>\n\n<h3 class=\"wp-block-post-title\"><a href=\"https:\/\/www.institut-foton.eu\/en\/circuits-photoniques-integres\/\" target=\"_self\" >Circuits photoniques int\u00e9gr\u00e9s<\/a><\/h3>\n\n<div style=\"font-size:5px;\" class=\"has-text-align-left wp-block-post-excerpt\"><p class=\"wp-block-post-excerpt__excerpt\">Pr\u00e9sentation Les circuits photoniques int\u00e9gr\u00e9s (PIC) sont \u00e0 l\u2019optique ce que les circuits imprim\u00e9s sont \u00e0 l\u2019\u00e9lectronique. Leur d\u00e9veloppement laisse donc augurer des perspectives immenses en termes d\u2019application, \u00e0 la fois pour des applications de capteurs (aide \u00e0 la navigation,<\/p><p class=\"wp-block-post-excerpt__more-text\"><a class=\"wp-block-post-excerpt__more-link\" href=\"https:\/\/www.institut-foton.eu\/en\/circuits-photoniques-integres\/\">\u2192 Lire la suite<\/a><\/p><\/div>\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n<\/li><\/ul><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Photonic and opto-electronic oscillators &#8211; Frequency locking on optical cavities &#8211; Dual frequency lasers \u2013 Optical frequency combs \u2013 Optical architectures for signal transport and processing \u2013 Photonic integrated circuits (PICs)<\/p>\n","protected":false},"author":3,"featured_media":613,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[29],"tags":[108,31],"class_list":["post-608","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-research-theme","tag-departement-dop","tag-axe2"],"translation":{"provider":"WPGlobus","version":"3.0.2","language":"en","enabled_languages":["fr","en"],"languages":{"fr":{"title":true,"content":true,"excerpt":true},"en":{"title":true,"content":true,"excerpt":true}}},"_links":{"self":[{"href":"https:\/\/www.institut-foton.eu\/en\/wp-json\/wp\/v2\/posts\/608","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.institut-foton.eu\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.institut-foton.eu\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.institut-foton.eu\/en\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.institut-foton.eu\/en\/wp-json\/wp\/v2\/comments?post=608"}],"version-history":[{"count":15,"href":"https:\/\/www.institut-foton.eu\/en\/wp-json\/wp\/v2\/posts\/608\/revisions"}],"predecessor-version":[{"id":10465,"href":"https:\/\/www.institut-foton.eu\/en\/wp-json\/wp\/v2\/posts\/608\/revisions\/10465"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.institut-foton.eu\/en\/wp-json\/wp\/v2\/media\/613"}],"wp:attachment":[{"href":"https:\/\/www.institut-foton.eu\/en\/wp-json\/wp\/v2\/media?parent=608"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.institut-foton.eu\/en\/wp-json\/wp\/v2\/categories?post=608"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.institut-foton.eu\/en\/wp-json\/wp\/v2\/tags?post=608"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}