Spectral mirror for ultra-short, high peak power, multi-PW Ti:sapphire lasers |
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| Authors: | F. Giambruno A. Freneaux G. Chériaux |
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| Affiliation: | 1. Laboratoire pour l’Utilisation des Lasers Intenses, êcole Polytechnique, Palaiseau, France
2. Laboratoire d’Optique Appliquée, Chemin de la Huniere, Palaiseau, France
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| Abstract: | A multilayer mirror for spectral filtering adapted to ultra-short and multi-PW Ti:Sa laser has been designed, manufactured and characterized. The method used to determine both the reflectivity shape and the coating design leads to global compensation of gain narrowing, saturation and spectral phase. The result is a spectral control on 200 nm range while keeping a flat spectral phase. This kind of filter will enable obtaining 15 fs pulse duration for multi-PW laser systems based on Ti:Sa. |
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