S. A. Belkov, B. G. Zimalin, P. Yu. Kruglov, A. O. Lipatov, A. N. Manachinskii, A. V. Yakhlov
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引用次数: 0
Abstract
We report an investigation of an adaptive system designed to correct the wavefront of laser beams up to 400 × 400 mm in size using a new generation multichannel laser facility. An algorithm is developed for the operation of the adaptive system to determine and correct wavefront aberrations of the laser beam in the amplification path without and with pumping slabs based on neodymium phosphate glass. Characteristic thermal aberrations of the amplification path that occur under slabs pumping are presented. A possibility of compensating for thermal aberrations in the amplifier path and the formation of a laser beam with an energy of up to 25 kJ and wavefront parameters of PV ≈ 1.4 μm and RMS ≈ 0.2 μm are experimentally demonstrated.
期刊介绍：
Bulletin of the Lebedev Physics Institute is an international peer reviewed journal that publishes results of new original experimental and theoretical studies on all topics of physics: theoretical physics; atomic and molecular physics; nuclear physics; optics; lasers; condensed matter; physics of solids; biophysics, and others.
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