{"id":5628,"date":"2026-04-19T17:37:39","date_gmt":"2026-04-19T15:37:39","guid":{"rendered":"https:\/\/www.swissrocketman.fr\/Wordpress\/?p=5628"},"modified":"2026-04-20T20:10:11","modified_gmt":"2026-04-20T18:10:11","slug":"5628","status":"publish","type":"post","link":"https:\/\/www.swissrocketman.fr\/Wordpress\/?p=5628","title":{"rendered":"COMPRESSEUR DE PULSE DU LASER MXR2010 Regenerative Amplifier CLARK"},"content":{"rendered":"

Compresseur de pulse du laser MXR 2010 Regenerative Amplifier CLARK<\/h1>\n\n\n\n
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Le laser CPA-2010 se compose d’un oscillateur femtoseconde \u00e0 fibre \u00e9mettant des pulses de 43pJ durant 100fs \u00e0 1550nm.<\/h3>\n

Un doubleur de fr\u00e9quence permet d’obtenir des pulses \u00e0 775nm avec un fr\u00e9quence de r\u00e9p\u00e9tition de 35MHz.<\/h3>\n

Au moyen d’une cellule de Pockel on isole 1 pulse que l’on va amplifier.<\/h3>\n

Puis le faisceau entre dans un \u00e9tireur\/isolateur model PS-1000 qui allonge le pulse d’un facteur de 2000 ce qui \u00e9vite lors de l’amplification de d\u00e9truire l’optique par l’\u00e9norme intensit\u00e9 lumineuse.<\/h3>\n

Maintenant la dur\u00e9e du pulse est de 200ps et elle est dirig\u00e9e au moyen d’une cellule de Pockel dans une unit\u00e9 TRA-1000\u00a0 appel\u00e9e amplificateur r\u00e9g\u00e9n\u00e9ratif ou il va travers\u00e9 un cristal titane:sapphire une quinzaine de fois pour obtenir un signal amplifi\u00e9 de 5.107
\nLe cristal titane:sapphire est pomp\u00e9 par un laser Nd:YAG doubl\u00e9 en fr\u00e9quence \u00e9mettant des flash de lumi\u00e8re vert de 170ns et de 20mJ \u00e0 1KHz.\u00a0Le pompage du Nd:YAG est fait par une lampe \u00e0 arc au Krypton de 2kW.
\n<\/sup>Puis\u00a0<\/sup>on recompresse le pulse au moyen d’un compresseur PL-1000 pour a nouveau obtenir un pulse de 100fs avec un \u00e9nergie de 1mJ soit une puissance instantan\u00e9e de 10GW ! \u00e0 une fr\u00e9quence de 1kHz !<\/h3>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div><\/section><\/div>\n
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