A diffractive optical beam-shaping element for imprinting a phase distribution on a transverse beam profile of a laser beam with surface elements adjacent to one another, which build up a flat lattice structure, where each surface element is assigned a phase shift value and the phase shift values define a two-dimensional phase distribution, wherein - the two-dimensional phase distribution has a beam center position that defines a radial direction in the flat lattice structure, - the surface elements are assigned to a plurality of angular segments (31, 31'; 33, 33'), - each angular segment (31, 31'; 33, 33') has an azimuth segment width (Δβj) with respect to the beam center position, - the phase shift values in the angular segments (31, 31'; 33, 33') form radially symmetrical phase curves with respect to the beam center position, - the radially symmetrical phase curves in the radial direction form lattice functions that have the same lattice period (Tr), and - a segment lattice phase (Θ) is assigned to each of the lattice functions, and wherein the azimuthal segment widths (Δβj) of at least two adjoining angular segments (31, 31'; 33, 33') differ and the segment lattice phases (Θj) of at least two adjoining angular segments (31, 31'; 33, 33') have a segment lattice phase difference (ΔΘj) between 0 and 2π. surface elements adjacent to one another, which build up a flat lattice structure, where each surface element is assigned a phase shift value and the phase shift values define a two-dimensional phase distribution, wherein - the two-dimensional phase distribution has a beam center position that defines a radial direction in the flat lattice structure, - the surface elements are assigned to a plurality of angular segments (31, 31'; 33, 33'), - each angular segment (31, 31'; 33, 33') has an azimuth segment width (Δβj) with respect to the beam center position, - the phase shift values in the angular segments (31, 31'; 33, 33') form radially symmetrical phase curves with respect to the beam center position, - the radially symmetrical phase curves in the radial direction form lattice functions that have the same lattice period (Tr), and - a segment lattice phase (Θ) is assigned to each of the lattice functions, and wherein - the two-dimensional phase distribution has a beam center position that defines a radial direction in the flat lattice structure, - the surface elements are assigned to a plurality of angular segments (31, 31'; 33, 33'), - each angular segment (31, 31'; 33, 33') has an azimuth segment width (Δβj) with respect to the beam center position, - the phase shift values in the angular segments (31, 31'; 33, 33') form radially symmetrical phase curves with respect to the beam center position, - the radially symmetrical phase curves in the radial direction form lattice functions that have the same lattice period (Tr), and - a segment lattice phase (Θ) is assigned to each of the lattice functions, and wherein the azimuthal segment widths (Δβj) of at least two adjoining angular segments (31, 31'; 33, 33') differ and the segment lattice phases (Θj) of at least two adjoining angular segments (31, 31'; 33, 33') have a segment lattice phase difference (ΔΘj) between 0 and 2π.