Compagnie Industrielle Des Lasers Cilas

Centre National De La Recherche Scientifique

Astrium Sas

Université De Limoges

Compagnie Industrielle Des Laser Cilas

Airbus Safran Launchers Sas

David Sabourdy

Jean-Eucher Montagne

Alain Barthelemy

Vincent Kermene

Bruno Esmiller

Agnès Desfarges-Berthelemot

Julien Guillot

Brigitte Serreault

Paul Armand

Sandrine Auroux

Alexandre Martins-Santana

Luc Nguyen Duy

David Kabeya

Agnès Desfarges-Berthellemot

An active element slab for a laser source is presented. The active element slab includes at least one input surface of a pump beam, a first section in the shape of an elongated bar along a longitudinal axis that includes a first doped matrix configured to absorb the beam pump to amplify a laser beam travelling longitudinally, a second section that covers at least partially the first section, the second section that includes a second doped matrix configured to absorb the laser beam and of being transparent to the pump beam.

Active element slab for a laser source

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

Method and laser oscillator for the generation of a laser beam&#x2014;According to the invention with a view to adjusting, inside said laser oscillator (), the phase of each of the N elementary laser beams (FLE., FLE., FLE.N) generated on the basis of said laser oscillator () in such a way that said elementary laser beams are in phase, the deviation between the phase of an individual elementary laser beam (FLE.) and the phases of the N&#x2212;1 other elementary laser beams (FLE., FLE.N) is converted into a level of luminous intensity by means of at least one optical filtering element to which at least a part of each elementary laser beam is directed.

Method and laser oscillator for the generation of a laser beam

The invention relates to a laser cavity with central extraction by polarisation for coherent coupling of intense intra-cavity beams. The laser cavity () according to the invention comprises an extraction unit () with central extraction, which divides the laser cavity () longitudinally into two functional portions (P, P), namely a first portion (P) including the active components (), which amplifies the laser beams (), and a second portion (P) which performs coherent coupling of the laser beams ().

Laser cavity with central extraction by polarisation for coherent coupling of intense intra-cavity beams

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Orléans, France

David Sabourdy