Transformation and Measurement of Parameters of Gaussian, Laguerre-Gaussian, and Super-Gaussian Beams by Using a Light Filter Based on Absorbing Axicon

摘要

Properties of a new optical element – light filter based on the absorbing axicon are studied. The filter allows determining the parameters of radially-symmetric laser beams, producing precisely collimated beams, and smooth tuning of the beam power. Transformation of Gaussian, Laguerre- Gaussian, and super-Gaussian beams in the filter is considered. As a result of this transformation doughnut-like and M-like beam profiles are produced.