Applying of refractive spatial beam shapers with scanning optics

Abstract

Using of refractive beam shapers with laser scanning optics is often considered in realizing various industrial laser technologies as well as techniques used in scientific and medical applications. Today the galvo mirror scanners with F-theta, telecentric or other lenses as well as gantry systems are widely used in different applications like micromachining, solar cell manufacturing, microwelding, drilling holes, selective laser melting and others which performance can be improved by applying of beam shaping optics. And, due to unique features like low output beam divergence, high transmittance as well as extended depth of field and capability to generate various beam profiles, the refractive field mappers provide a freedom in building an optimum optical system. There will be considered some basic theoretical features of choosing an optimum refractive beam shaper and building systems on its base, as well as several optical layouts with beam shapers πShaper to generate laser spots of uniform intensity which sizes span from several tens of microns to millimetres. Examples of real implementations will be presented as well.Using of refractive beam shapers with laser scanning optics is often considered in realizing various industrial laser technologies as well as techniques used in scientific and medical applications. Today the galvo mirror scanners with F-theta, telecentric or other lenses as well as gantry systems are widely used in different applications like micromachining, solar cell manufacturing, microwelding, drilling holes, selective laser melting and others which performance can be improved by applying of beam shaping optics. And, due to unique features like low output beam divergence, high transmittance as well as extended depth of field and capability to generate various beam profiles, the refractive field mappers provide a freedom in building an optimum optical system. There will be considered some basic theoretical features of choosing an optimum refractive beam shaper and building systems on its base, as well as several optical layouts with beam shapers πShaper to generate laser spots of uniform intensity whic...