Adaptive system for correcting optical aberrations of high-power lasers with dynamic determination of the reference wavefront
A. V. Kotov, S. E. Perevalov, M. Starodubtsev, R. S. Zemskov, Alexander Alexandrov, Ilya Galaktionov, Alexis Kudryashov, Vadim Samarkin, A. A. Soloviev
Abstract
Abstract We present the results of the aberration correction of laser radiation wavefront using a dynamic method for determining the reference wavefront. The method, which is based on the processing of synchronously obtained data on the near- and far-field zones, significantly improves the focusing quality with active wavefront correction, especially under conditions of dynamic aberrations. An increase in the Strehl number S from 0.7 to 0.86 is demonstrated when a beam 18 cm in diameter is focused by an F /2.5 parabolic mirror.
Topics & Concepts
Strehl ratioWavefrontAdaptive opticsOpticsWavefront sensorDeformable mirrorPhysicsLaserLaser beam qualityPower (physics)Optical powerOptical aberrationLaser beamsQuantum mechanicsAdaptive optics and wavefront sensingOptical Systems and Laser TechnologyAdvanced X-ray Imaging Techniques