High power femtosecond laser: from micro to macro femtosecond laser processing

High average power femtosecond (from 100 W to 1 kW) with higher productivity open access to new and large markets of "macro" processing (Aeronautics, Energy and Mobility) unreachable so far for femtosecond laser processing, more devoted to micro processing (microelectronics). The main challenge is to find the right way to exploit the laser power, the solutions being somewhat different for each case. This work presents an example of optimization in the technical field of aerodynamic performances.