The authors simulated and accompanied by optical measurements various available design options for constructing output stages of laser medical equipment in light of possible implementations under certain limitations in the design, production and operation processes. The design option for a flexible optical fiber proposed by the authors is characterized by its manufacturability and structural simplicity, ensures effective, repeatable transformation of homogeneity in the beam and, most likely, allows for complex optimization. In the case of relevance of light spots in the form of elongated rectangles, it may be interesting to use a combination of individual parallel beams and lens assemblies. When removing the restriction of mandatory beam collimation, the use of channel waveguides as an aperture is of particular interest (both from the point of view of reducing optical radiation power losses and variability of the performance of output cascades of laser equipment).
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