Optical arrangement and laser system

An optical arrangement for converting an input laser beam into a line-like output beam, which propagates along a direction of propagation and which has, in a working plane, a line-like beam cross section of non-vanishing intensity that extends along a direction of a line, the optical system comprising:

• a reshaping optical unit having an input aperture, through which the input laser beam can be radiated, and an elongate output aperture, which extends along an aperture longitudinal direction in an elongate manner, the reshaping optical unit being configured wherein the input laser beam radiated through the input aperture is converted into a beam packet exiting through the output aperture;
• and
• a homogenization optical unit which is designed to convert the beam packet into the line-like output beam, different beam segments of the beam packet being intermixed and superimposed along the direction of the line, wherein the aperture longitudinal direction extends in a manner rotated about the direction of propagation by a non-vanishing angle of rotation with respect to the direction of the line.