Optical arrangement and laser system

The invention relates to an optical arrangement (20) for converting an input laser beam (18) into a linear output beam (12), comprising a shaping optical system (24) having an input aperture through which the input laser beam can be incident and an output aperture of elongated design, the invention relates to an optical arrangement comprising an input aperture, an output aperture and shaping optics (28), which are designed in such a way that an input laser beam incident through the input aperture is converted into a beam packet that exits through the output aperture and has a plurality of beam segments, and a homogenization optics (28), which is designed in such a way that the beam packet has a plurality of beam segments. The invention relates to a method for converting a beam package into a linear output beam, in which different beam sections of the beam package are mixed and superimposed in the linear direction, and in which deflection optics (22) are provided, which are designed to deflect the input laser