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Design of high-intensity chirped-pulse amplification lasers with propagation and amplification software

We have simulated Chirped Pulse Amplification process with a new software, allowing to extend the generally used 1D-models. We show here the importance of the beam spatial discretization in simulations in order to describe the gain saturation. Experimental measurements performed on our 100 TW laser validate this calculation, allowing us to carefully design the next generation of Ti:sapphire lasers at the Petawatt level.