Abstract
Modern techniques of laser material processing require not only simple homogenizing of a beam but also more freedom in manipulation of intensity profile and generating such profiles like super-Gaussian, inverse-Gaussian; and controllable varying of the intensity profile allows to “adjust” a particular material processing technology, improve it or make more efficient. These tasks can be successfully solved with using the field mapping refractive beam shaping optics like πShaper which operational principle presumes saving of beam consistency, collimated low divergent output beam, high transmittance, extended depth of field. Varying of the input beam diameter lets it possible to realize either super-Gaussian (smaller input) or inverse-Gaussian (bigger input) intensity profiles of output beam. All variety of profiles can be provided by the same beam shaper unit. There will be considered in the paper the design basics of refractive beam shapers and techniques to vary the output intensity profile, experimental results will be presented as well.Modern techniques of laser material processing require not only simple homogenizing of a beam but also more freedom in manipulation of intensity profile and generating such profiles like super-Gaussian, inverse-Gaussian; and controllable varying of the intensity profile allows to “adjust” a particular material processing technology, improve it or make more efficient. These tasks can be successfully solved with using the field mapping refractive beam shaping optics like πShaper which operational principle presumes saving of beam consistency, collimated low divergent output beam, high transmittance, extended depth of field. Varying of the input beam diameter lets it possible to realize either super-Gaussian (smaller input) or inverse-Gaussian (bigger input) intensity profiles of output beam. All variety of profiles can be provided by the same beam shaper unit. There will be considered in the paper the design basics of refractive beam shapers and techniques to vary the output intensity profile, experimental ...
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