{"id":416,"date":"2023-07-18T10:31:34","date_gmt":"2023-07-18T08:31:34","guid":{"rendered":"https:\/\/www.institut-foton.eu\/?p=416"},"modified":"2025-04-22T12:11:32","modified_gmt":"2025-04-22T10:11:32","slug":"single-blue-stabilization-of-ingan-external-cavity-diodes-laser-on-optical-or-molecular-references","status":"publish","type":"post","link":"https:\/\/www.institut-foton.eu\/en\/single-blue-stabilization-of-ingan-external-cavity-diodes-laser-on-optical-or-molecular-references\/","title":{"rendered":"Single Blue : Stabilization of InGaN external-cavity diodes laser on optical or molecular references"},"content":{"rendered":"\n
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October 2018 \u2013 June 2019<\/p>\n\n\n\n

Project LabEx FIRST-TF<\/a><\/p>\n<\/div>\n\n\n\n

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Context<\/h2>\n\n\n\n

Blue laser diodes (405-460 nm) usually have a multimode spectrum. The use of an external cavity favors monomode behavior and, depending on the cavity finesse, allows to reduce the natural linewidth of the laser. As an example, a cavity based on diffraction grating downsizes the linewidth to a few kHz. Nevertheless, various \u2018low frequency\u2019 noises contribute to increase the laser linewidth to a few MHz for integration time of the order of the second.<\/p>\n\n\n\n

Goals<\/h2>\n\n\n\n

Single Blue project aims to reduce the \u2018low frequency\u2019 noise of blue laser diodes for linewidth narrowing and stabilization. Two servo loops will be studied: a pre-stabilization scheme based on an optical cavity and long term stabilization realized by locking the laser on an atomic transition. The final goal is to transfer the skills on laser stabilization to the laser company Oxxius which is interested in compact embeddable and low cost blue EDCL lasers with kHz linewidth over 1 second integration time<\/p>\n\n\n\n

Stages<\/h2>\n\n\n\n

Continuity of the project Deep Blue which ended in 2018<\/p>\n\n\n\n

Partners<\/h2>\n\n\n\n

Foton-SP – LPL<\/a> – Oxxius<\/a><\/p>\n\n\n\n

Coordinator<\/h2>\n\n\n\n

St\u00e9phane TREBAOL<\/a> (Foton-SP)<\/p>\n\n\n\n

Funding<\/h2>\n\n\n\n

FIRST-TF LabEx<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

October 2018 \u2013 June 2019<\/p>\n","protected":false},"author":3,"featured_media":1387,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[25],"tags":[111,50],"class_list":["post-416","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-projets","tag-departement-sp","tag-lasers-applications-communications-optiques"],"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\/416","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=416"}],"version-history":[{"count":14,"href":"https:\/\/www.institut-foton.eu\/en\/wp-json\/wp\/v2\/posts\/416\/revisions"}],"predecessor-version":[{"id":8088,"href":"https:\/\/www.institut-foton.eu\/en\/wp-json\/wp\/v2\/posts\/416\/revisions\/8088"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.institut-foton.eu\/en\/wp-json\/wp\/v2\/media\/1387"}],"wp:attachment":[{"href":"https:\/\/www.institut-foton.eu\/en\/wp-json\/wp\/v2\/media?parent=416"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.institut-foton.eu\/en\/wp-json\/wp\/v2\/categories?post=416"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.institut-foton.eu\/en\/wp-json\/wp\/v2\/tags?post=416"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}