Amplitude modulation of a kilowatt laser pulse with LiNbO3 Pockels cells: experiments and results on the Phebus facility

Emmanuel Bar; Francois Boubal; Nathalie Boyer; Rene Bailly-Salins

doi:10.1117/12.354246

23 July 1999 Amplitude modulation of a kilowatt laser pulse with LiNbO₃ Pockels cells: experiments and results on the Phebus facility

Emmanuel Bar, Francois Boubal, Nathalie Boyer, Rene Bailly-Salins

Author Affiliations +

Proceedings Volume 3492, Third International Conference on Solid State Lasers for Application to Inertial Confinement Fusion; (1999) https://doi.org/10.1117/12.354246
Event: Third International Conference on Solid State Lasers for Application to Inertial Confinement Fusion, 1998, Monterey, CA, United States

Abstract

New amplitude modulators using LiNbO₃ (LNO) bulk crystals have been developed at CEA/LV in order to create short temporal pulse shaping with a monomode power laser pulse before amplifying and focusing on a target. A 4 ns profile can be controlled by a growing high voltage pulse applied on electrodes pasted to the crystal. After having computed the voltage capacities and the efficiency of the Pockels effect in terms of contrast, shape quality, pulse duration and rise time, we experimented shots on Phebus facility to validate the performances of the device. This baseline of pulse shaping can be adopted in case of smoothing a broadband laser beam with an optical fiber in the LMJ facility design.

Citation Download Citation

Emmanuel Bar, Francois Boubal, Nathalie Boyer, and Rene Bailly-Salins "Amplitude modulation of a kilowatt laser pulse with LiNbO₃ Pockels cells: experiments and results on the Phebus facility", Proc. SPIE 3492, Third International Conference on Solid State Lasers for Application to Inertial Confinement Fusion, (23 July 1999); https://doi.org/10.1117/12.354246

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