{"id":1085,"date":"2018-09-28T14:17:11","date_gmt":"2018-09-28T12:17:11","guid":{"rendered":"https:\/\/samovar2022.int-evry.fr\/index.php\/2018\/09\/28\/seminaire-general-comelec-jeudi-4-octobre-amphi-jade-14h\/"},"modified":"2020-09-04T18:45:45","modified_gmt":"2020-09-04T16:45:45","slug":"seminaire-general-comelec-jeudi-4-octobre-amphi-jade-14h","status":"publish","type":"post","link":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/2018\/09\/28\/seminaire-general-comelec-jeudi-4-octobre-amphi-jade-14h\/","title":{"rendered":"Seminaire general Comelec (jeudi 4 octobre, amphi JADE, 14H)"},"content":{"rendered":"

\u00ab\u00a0M\u00e9trologie des fr\u00e9quences optiques et peignes de fr\u00e9quences compacts\u00a0\u00bb<\/strong>
\nVincent RONCIN, Laboratoire de Physique des Lasers, Universit\u00e9 Paris 13<\/p>\n

Jeudi 4 octobre 2018, 14H00, T\u00e9l\u00e9com ParisTech, Amphi JADE,
\n46 rue Barrault, Paris 13<\/strong><\/p>\n

Les peignes de fr\u00e9quences compacts sont des outils m\u00e9trologiques ayant vocation \u00e0 \u00eatre int\u00e9gr\u00e9s dans des syst\u00e8mes embarqu\u00e9s d\u00e9di\u00e9s entre autres \u00e0 la g\u00e9n\u00e9ration d\u2019horloges pour des applications spatiales, \u00e0 la spectroscopie de pr\u00e9cision et aux tests fondamentaux n\u00e9cessitant des r\u00e9f\u00e9rences de fr\u00e9quences, \u00e0 la g\u00e9n\u00e9ration d\u2019ondes optiques\/microm\u00e9triques\/Terahertz ultra-stables pour des applications en t\u00e9l\u00e9communications (radar, communication sans fil, communications optiques coh\u00e9rentes, etc.).<\/p>\n

Lors du s\u00e9minaire je pr\u00e9senterai dans un premier temps les grands principes de la m\u00e9trologie Temps-Fr\u00e9quences : les outils exp\u00e9rimentaux (r\u00e9f\u00e9rence, cavit\u00e9 de transfert) et les outils math\u00e9matiques (variance d\u2019Allan) n\u00e9cessaire \u00e0 la caract\u00e9risation m\u00e9trologique des oscillateurs optiques, et ce, au travers de deux exemples de techniques de stabilisation en fr\u00e9quence d\u2019un laser : l\u2019une sur une cavit\u00e9 ultra-stable (Pound-Drever-Hall) et l\u2019autre sur une transition mol\u00e9culaire par la technique d\u2019absorption satur\u00e9e en cellule.<\/p>\n

Dans un second temps, je pr\u00e9senterai mon activit\u00e9 de recherche sur les peignes de fr\u00e9quences compacts et les r\u00e9sultats de stabilisation et de r\u00e9f\u00e9rencement de lasers \u00e0 semi-conducteurs \u00e0 blocage de modes optiques passifs, sur une cavit\u00e9 de transfert \u00e0 fibre r\u00e9f\u00e9renc\u00e9e sur une transition d\u2019Ac\u00e9tyl\u00e8ne d\u00e9tect\u00e9e en absorption satur\u00e9e. Les avantages d\u2019une stabilisation mixte conjuguant stabilisation opto\u00e9lectronique et affinement du peigne par injection optique seront discut\u00e9s.<\/p>\n

\n

* Le s\u00e9minaire g\u00e9n\u00e9ral (usuellement le 1er jeudi du mois) porte sur un sujet d’int\u00e9r\u00eat g\u00e9n\u00e9ral, couvrant alternativement les th\u00e9matiques du d\u00e9partement et au-del\u00e0. Il s’adresse aux doctorants, post-docs, chercheurs et enseignants-chercheurs et plus globalement toute personne que cela int\u00e9resse. Il est effectu\u00e9 par des chercheurs ext\u00e9rieurs ou par des chercheurs du d\u00e9partement. Il a pour objectif d’aborder les sujets propos\u00e9s sous un angle large, visant \u00e0 l’enrichissement de la culture scientifique de chacun au-del\u00e0 des domaines d’int\u00e9r\u00eat imm\u00e9diat. Les doctorants et jeunes chercheurs sont particuli\u00e8rement concern\u00e9s, l’ouverture d’esprit \u00e0 laquelle peuvent contribuer ces s\u00e9minaires \u00e9tant, vis-\u00e0-vis d’un futur recruteur, souvent au moins aussi importante que le travail de th\u00e8se proprement dit.<\/p>\n","protected":false},"excerpt":{"rendered":"

\u00ab\u00a0M\u00e9trologie des fr\u00e9quences optiques et peignes de fr\u00e9quences compacts\u00a0\u00bb Vincent RONCIN, Laboratoire de Physique des Lasers, Universit\u00e9 Paris 13 Jeudi 4 octobre 2018, 14H00, T\u00e9l\u00e9com ParisTech, Amphi JADE, 46 rue Barrault, Paris 13 Les peignes de fr\u00e9quences compacts sont des outils m\u00e9trologiques ayant vocation \u00e0 \u00eatre int\u00e9gr\u00e9s dans des syst\u00e8mes embarqu\u00e9s d\u00e9di\u00e9s entre autres \u00e0 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ocean_post_layout":"","ocean_both_sidebars_style":"","ocean_both_sidebars_content_width":0,"ocean_both_sidebars_sidebars_width":0,"ocean_sidebar":"","ocean_second_sidebar":"","ocean_disable_margins":"enable","ocean_add_body_class":"","ocean_shortcode_before_top_bar":"","ocean_shortcode_after_top_bar":"","ocean_shortcode_before_header":"","ocean_shortcode_after_header":"","ocean_has_shortcode":"","ocean_shortcode_after_title":"","ocean_shortcode_before_footer_widgets":"","ocean_shortcode_after_footer_widgets":"","ocean_shortcode_before_footer_bottom":"","ocean_shortcode_after_footer_bottom":"","ocean_display_top_bar":"default","ocean_display_header":"default","ocean_header_style":"","ocean_center_header_left_menu":"","ocean_custom_header_template":"","ocean_custom_logo":0,"ocean_custom_retina_logo":0,"ocean_custom_logo_max_width":0,"ocean_custom_logo_tablet_max_width":0,"ocean_custom_logo_mobile_max_width":0,"ocean_custom_logo_max_height":0,"ocean_custom_logo_tablet_max_height":0,"ocean_custom_logo_mobile_max_height":0,"ocean_header_custom_menu":"","ocean_menu_typo_font_family":"","ocean_menu_typo_font_subset":"","ocean_menu_typo_font_size":0,"ocean_menu_typo_font_size_tablet":0,"ocean_menu_typo_font_size_mobile":0,"ocean_menu_typo_font_size_unit":"px","ocean_menu_typo_font_weight":"","ocean_menu_typo_font_weight_tablet":"","ocean_menu_typo_font_weight_mobile":"","ocean_menu_typo_transform":"","ocean_menu_typo_transform_tablet":"","ocean_menu_typo_transform_mobile":"","ocean_menu_typo_line_height":0,"ocean_menu_typo_line_height_tablet":0,"ocean_menu_typo_line_height_mobile":0,"ocean_menu_typo_line_height_unit":"","ocean_menu_typo_spacing":0,"ocean_menu_typo_spacing_tablet":0,"ocean_menu_typo_spacing_mobile":0,"ocean_menu_typo_spacing_unit":"","ocean_menu_link_color":"","ocean_menu_link_color_hover":"","ocean_menu_link_color_active":"","ocean_menu_link_background":"","ocean_menu_link_hover_background":"","ocean_menu_link_active_background":"","ocean_menu_social_links_bg":"","ocean_menu_social_hover_links_bg":"","ocean_menu_social_links_color":"","ocean_menu_social_hover_links_color":"","ocean_disable_title":"default","ocean_disable_heading":"default","ocean_post_title":"","ocean_post_subheading":"","ocean_post_title_style":"","ocean_post_title_background_color":"","ocean_post_title_background":0,"ocean_post_title_bg_image_position":"","ocean_post_title_bg_image_attachment":"","ocean_post_title_bg_image_repeat":"","ocean_post_title_bg_image_size":"","ocean_post_title_height":0,"ocean_post_title_bg_overlay":0.5,"ocean_post_title_bg_overlay_color":"","ocean_disable_breadcrumbs":"default","ocean_breadcrumbs_color":"","ocean_breadcrumbs_separator_color":"","ocean_breadcrumbs_links_color":"","ocean_breadcrumbs_links_hover_color":"","ocean_display_footer_widgets":"default","ocean_display_footer_bottom":"default","ocean_custom_footer_template":"","ocean_post_oembed":"","ocean_post_self_hosted_media":"","ocean_post_video_embed":"","ocean_link_format":"","ocean_link_format_target":"self","ocean_quote_format":"","ocean_quote_format_link":"post","ocean_gallery_link_images":"on","ocean_gallery_id":[],"footnotes":""},"categories":[286],"tags":[],"class_list":["post-1085","post","type-post","status-publish","format-standard","hentry","category-fractualites-ennews-fr","entry"],"_links":{"self":[{"href":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/wp-json\/wp\/v2\/posts\/1085","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/wp-json\/wp\/v2\/comments?post=1085"}],"version-history":[{"count":1,"href":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/wp-json\/wp\/v2\/posts\/1085\/revisions"}],"predecessor-version":[{"id":1510,"href":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/wp-json\/wp\/v2\/posts\/1085\/revisions\/1510"}],"wp:attachment":[{"href":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/wp-json\/wp\/v2\/media?parent=1085"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/wp-json\/wp\/v2\/categories?post=1085"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/samovar.telecom-sudparis.eu\/index.php\/wp-json\/wp\/v2\/tags?post=1085"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}