Expansion-adapted mounting and electrical contacting of laser diode
elements are connected with one another in terms of structural
engineering such that the laser diode elements can be stacked or arranged
laterally in one plane for producing vertical diode laser arrangements
with low production complexity. The upper and the lower layers of a
heat-distributing multilayer substrate for a diode laser subelement,
between which a separating layer is disposed, contain metal strata
regions arranged spaced from one another of which for forming strata
region pairs each strata region of the upper layer is joined electrically
conducting to a strata region of the lower layer. The separating layer
contains at least one electrically insulating stratum made of
non-metallic material and the sum of the thicknesses of metallic strata
in the multilayer substrate exceeds the sum of the thicknesses of
non-metallic strata at least in a partial region perpendicular to the
mounting surface for at least one laser diode element.