Patent ID: 8130807

Claim:
A diode laser array comprising at least one laser bar with at least one emitter, a heat sink array with at least two heat sinks forming a heat sink pair of first and second heat sinks, each heat sink including a top conductive metal layer and a bottom conductive metal layer with inner conductive metal layers between the top conductive metal layer and the bottom conductive metal layer in the form of an active cooler for cooling the at least one laser bar, the at least one laser bar being thermally and electrically bonded on both sides to the first heat sink and the second heat sink, respectively, so as to achieve optimum cooling of the at least one laser bar, the respective first and second heat sinks being located at least in each heat sink mounting area of the at least one laser bar, at least one insulating ceramic layer provided between the first and second heat sinks, such that a gap is formed between the first and second heat sinks for holding at least one laser bar, wherein the first and second heat sinks are bonded to the at least one ceramic insulating layer using a direct carbon bond to form a monolithic heat sink array, and wherein the first and second heat sinks only include a top conductive layer, a bottom conductive layer, and inner conductive metal layers, the conductive metal layers of each heat sink bonded together using a direct carbon bond, with inner layers being structured to form a cooling structure comprising a plurality of cooling channels.