{"id":9660,"date":"2026-08-02T22:28:50","date_gmt":"2026-08-02T20:28:50","guid":{"rendered":"https:\/\/www.swissrocketman.fr\/Wordpress\/?p=9660"},"modified":"2026-08-03T12:52:32","modified_gmt":"2026-08-03T10:52:32","slug":"650w-yag-cw-laser-haas","status":"publish","type":"post","link":"https:\/\/www.swissrocketman.fr\/Wordpress\/650w-yag-cw-laser-haas\/","title":{"rendered":"650W YAG cw laser Haas"},"content":{"rendered":"
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Construction d’un YAG pomp\u00e9 par 2 tubes Krypton de 10 kW chacun soit 20 kW pompe sur un barreau Nd:YAG de 170 mm x 8 mm sortant d\u00e9j\u00e0 plus de 650W cw<\/p>\n

J’ai opt\u00e9 pour un montage en Z pour des raisons de limitation de l’effet de diffraction du barreau YAG comme il est pomp\u00e9 par des tubes krypton!
\nJe vais utiliser un BBO de 5x5x15 mm avec des fen\u00eatre de Brewster mont\u00e9 sur un TEC avec une r\u00e9gulation PID pour doubl\u00e9 la fr\u00e9quence \u00e0 532 nm avec 350\u00e0 420W de sortie !
\nLe BBO est un cristal bir\u00e9fringent uniaxe n\u00e9gatif que je vais utiliser en accord de phase type I .
\nLe BBO \u00e0 2 avantages et 1 inconv\u00e9nient !
\nAvantage En effet si les indices optiques varient avec la longueur d’onde, ils varient \u00e9galement avec la temp\u00e9ratures !
\nComme la puissance est tr\u00e8s \u00e9lev\u00e9e plus de 400W pr\u00e9vu il faut trouver un cristal dont l’indice optique est tr\u00e8s peu sensible \u00e0 la temp\u00e9rature ce qui est le cas du BBO d(ne)\/dT= -9.3.10e-6 1\/K et d(n0)\/dT= – 16.6.10e-6 1\/K
\nLe deuxi\u00e8me avantage c’est que sa tenue au flux pompe est 20 fois plus \u00e9lev\u00e9 qu’un KTP (plusieurs GW\/cm2)
\nL’inconv\u00e9nient c’est qu’il est l\u00e9g\u00e8rement hygroscopique ce qui n\u00e9cessite de le fermer dans une cavit\u00e9 \u00e9tanche \u00e0 l’air et sous atmosph\u00e8re d’oxyg\u00e8ne!
\nLa temp\u00e9rature optimum de travail sera de 15 degr\u00e9s Celsius: mon BBO je l’ai acheter chez CLEVELAND USA.
\nIl est tailler \u00e0 90 degr\u00e9 par rapport \u00e0 l’axe optique.<\/p>\n<\/div><\/section><\/div>\n

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Poids\u00a0 1500 kg\u00a0 \u00a0 \u00a0consommation\u00a0 125 kW\u00a0 \u00a0 \u00a0Prix\u00a0 \u00a0 500″000 euro\u00a0 \u00a0 4kW\u00a0 M=12<\/p>\n<\/div><\/section><\/p><\/div>\n

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Poids\u00a0 28 kg\u00a0 \u00a0 consommation\u00a0 5kW\u00a0 \u00a0prix 4740 euro\u00a0 \u00a0 \u00a03kW TEMOO\u00a0 M=1.1<\/p>\n<\/div><\/section><\/p><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":9697,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"class_list":["post-9660","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-lasers-a-solides"],"_links":{"self":[{"href":"https:\/\/www.swissrocketman.fr\/Wordpress\/wp-json\/wp\/v2\/posts\/9660","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=9660"}],"version-history":[{"count":12,"href":"https:\/\/www.swissrocketman.fr\/Wordpress\/wp-json\/wp\/v2\/posts\/9660\/revisions"}],"predecessor-version":[{"id":9716,"href":"https:\/\/www.swissrocketman.fr\/Wordpress\/wp-json\/wp\/v2\/posts\/9660\/revisions\/9716"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.swissrocketman.fr\/Wordpress\/wp-json\/wp\/v2\/media\/9697"}],"wp:attachment":[{"href":"https:\/\/www.swissrocketman.fr\/Wordpress\/wp-json\/wp\/v2\/media?parent=9660"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.swissrocketman.fr\/Wordpress\/wp-json\/wp\/v2\/categories?post=9660"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.swissrocketman.fr\/Wordpress\/wp-json\/wp\/v2\/tags?post=9660"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}