FORMATION OF THE DOUGHNUT AND SUPER-GAUSSIAN INTENSITY DISTRIBUTION BY MEANS OF DIFFERENT TYPES OF WAVEFRONT CORRECTORS

摘要

The transformation of an intensity distribution from Gaussian to a flattop, doughnut, etc. still is a very interesting and important task. And the necessary result could be obtained with the use of adaptive optics that changes the phase of the beam and modifies the shape of the focal spot in the far-field zone. In this paper, we present the flattop and doughnut beam formation result with the use of a bimorph and stacked-actuator deformable mirrors as well as LC phase modulator. The experimental results are also given.