Zernike-based hill-climbing algorithm for super-Gaussian and doughnut-like laser beam shaping by means of a phase-only spatial light modulator

Adaptive optical system with phase-only special light modulator and intensity analyzer for laser beam shaping was assembled. The newly developed Zernike-based hill-climbing algorithm for creating the super-Gaussian and doughnut-like intensity distributions was developed. It was shown that about 60 % and 75 % of the initial beam energy was concentrated in the focal spot for the doughnut-like and flat-top intensity distributions, correspondingly.