{"id":6725,"date":"2026-06-08T18:45:52","date_gmt":"2026-06-08T16:45:52","guid":{"rendered":"https:\/\/www.swissrocketman.fr\/Wordpress\/?p=6725"},"modified":"2026-06-10T08:08:42","modified_gmt":"2026-06-10T06:08:42","slug":"tunable-co2-laser-oscillator","status":"publish","type":"post","link":"https:\/\/www.swissrocketman.fr\/Wordpress\/tunable-co2-laser-oscillator\/","title":{"rendered":"Tunable CO2 laser oscillator"},"content":{"rendered":"

Ce petit laser CO2 accordable travaillant en r\u00e9gime d’oscillateur monomode et monofr\u00e9quence je l’ai r\u00e9alis\u00e9 pour un client en 1987 .<\/span><\/span>
\nIl se compose d’un tube de d\u00e9charge capillaire en alumine \u00e9quip\u00e9 sous le tube d’un bloc en laiton dans lequel circule de l’eau de refroidissement.<\/span><\/span>
\nL’arriv\u00e9e HT se fait par 2 \u00e9lectrodes mont\u00e9es au milieu du tube \u00e0 d\u00e9charge.<\/span><\/span>
\nLe r\u00e9sonateur\u00a0 se compose d’un r\u00e9seau de diffraction mont\u00e9 dans l’enceinte contenant le gaz actif qui est un m\u00e9lange (He:N2:CO2) ce qui \u00e9vite d’avoir une fen\u00eatre \u00e0 l’incidence de Brewster. L’angle du r\u00e9seau de diffraction est r\u00e9gl\u00e9 au moyen d’une vis microm\u00e9trique.<\/span><\/span>
\nLa sortie se fait par un miroir semi-transparent en germanium.<\/span><\/span>
\nLe tube capillaire en alumine \u00e0 un lumen de 1mm et une longueur active de 100mm.<\/span><\/span> <\/span><\/h3>\n<\/div><\/section><\/div>\n

<\/div><\/div><\/div>
\n

4 barres en INVAR maintiennent le r\u00e9sonnateur align\u00e9 durant le fonctionnement.<\/h4>\n<\/div><\/section><\/p><\/div>\n
<\/div><\/div><\/div><\/div>\n
Le CO\u2082 poss\u00e8de de tr\u00e8s nombreuses transitions vibration-rotation.<\/h5>\n
Les principales bandes sont :<\/h5>\n
    \n
  • \n
    9,2 \u00b5m<\/h5>\n<\/li>\n
  • \n
    9,4 \u00b5m<\/h5>\n<\/li>\n
  • \n
    9,6 \u00b5m<\/h5>\n<\/li>\n
  • \n
    10,2 \u00b5m<\/h5>\n<\/li>\n
  • \n
    10,4 \u00b5m<\/h5>\n<\/li>\n
  • \n
    10,6 \u00b5m<\/h5>\n<\/li>\n
  • \n
    10,8 \u00b5m<\/h5>\n<\/li>\n<\/ul>\n
    Le r\u00e9seau permet de s\u00e9lectionner une raie particuli\u00e8re parmi plusieurs dizaines disponibles.<\/h5>\n
    Typiquement un tel oscillateur peut acc\u00e9der \u00e0 plus de 50 raies laser distinctes selon le m\u00e9lange gazeux et le r\u00e9glage du r\u00e9seau.<\/h5>\n
    <\/h5>\n<\/div><\/section><\/div>\n
    <\/div><\/div><\/div><\/div>\n
    <\/div><\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":6728,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-6725","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-lasers-a-gaz"],"_links":{"self":[{"href":"https:\/\/www.swissrocketman.fr\/Wordpress\/wp-json\/wp\/v2\/posts\/6725","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.swissrocketman.fr\/Wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.swissrocketman.fr\/Wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.swissrocketman.fr\/Wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.swissrocketman.fr\/Wordpress\/wp-json\/wp\/v2\/comments?post=6725"}],"version-history":[{"count":8,"href":"https:\/\/www.swissrocketman.fr\/Wordpress\/wp-json\/wp\/v2\/posts\/6725\/revisions"}],"predecessor-version":[{"id":6817,"href":"https:\/\/www.swissrocketman.fr\/Wordpress\/wp-json\/wp\/v2\/posts\/6725\/revisions\/6817"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.swissrocketman.fr\/Wordpress\/wp-json\/wp\/v2\/media\/6728"}],"wp:attachment":[{"href":"https:\/\/www.swissrocketman.fr\/Wordpress\/wp-json\/wp\/v2\/media?parent=6725"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.swissrocketman.fr\/Wordpress\/wp-json\/wp\/v2\/categories?post=6725"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.swissrocketman.fr\/Wordpress\/wp-json\/wp\/v2\/tags?post=6725"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}