Testing of active Fresnel rhomb zigzag slab amplifier

The work is devoted to the investigation of a wide-aperture amplifier which is intended to be installed in the laser system Nova upgrade. The amplifier should meet rather severe requirements. We have carried out the experimental investigation of gain nonuniformity over all the aperture of the amplifier and estimated depolarization and phase distortions to determine the sizes of the amplifier aperture operating zone.© (1995) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.