Centre National De La Recherche Scientifique

Université De Limoges

Compagnie Industrielle Des Lasers Cilas

Paul Armand

Alain Barthelemy

Vincent Kermene

Jean-Eucher Montagne

Agnès Desfarges-Berthelemot

David Sabourdy

Joël Benoist

Jérémy Saucourt

Julien Leval

David Kabeya

A method and system for adjusting the profile of a laser wavefront formed by at least a laser beam to a desired laser wavefront profile, the laser beam or beams presenting random phases and intensities, comprises a mixing module, configured to generate, from interference phenomena among the laser beam or beams, a laser field, a second intensity measuring module configured to measure the mixed intensities of the laser field portions, a calculation unit configured to calculate one or several phase correction values of the phase of the laser beam or the phases of laser beams, from the intensities of the laser beams, the mixed intensities and one or several predetermined target phases, and a phase adjustment module configured to apply the phase correction value or values obtained from the calculation unit to the laser beam phases.

Method and system for adjusting the profile of a laser wavefront

According to the invention, a plurality of elementary laser beams (f) are generated, the phases of which are adjusted by an electro-optical feedback loop () implementing the matrix equation of a phase-contrast filtering device ().

Method and system for generating a high laser power

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Limoges, France

Paul Armand