title: Paraxial properties of three-element zoom systems for laser beam expanders.
abstract: Our work is focused on the problem of theoretical analysis of paraxial properties of the three-element zoom optical system for laser beam expanders. Equations that enable to calculate mutual axial distances between individual elements of the system based on the axial position of the beam waist of the input Gaussian beam and the desired magnification of the system are derived. Finally, the derived equations are applied on an example of calculation of paraxial parameters of the three-element zoom system for the laser beam expander.
authors.forename: Antonín
authors.initials: A
authors.lastname: Mikš
authors.forename: Pavel
authors.initials: P
authors.lastname: Novák