Optical systems for measuring the Wigner function of a laser beam by the method of phase-spatial tomography

The geometrical and wave approaches to the transformation of a family of the illumination distributions, measured at different sections of a laser beam focused by an optical system, to a family of different-aspect projections of the Wigner function of this beam required for the reconstruction of this function by the method of computer tomography are considered from a unified point of view by using the mathematical apparatus of matrix optics.