Patent ID: 8432945
Filing Date: 2013-04-30
Classification: G02B

Abstract:
1. A laser module comprising: (1) a thermally dissipative body comprising a top surface comprising a plurality of heat-dissipating surface regions; (2) a plurality of single-emitter laser diode chips; wherein each single-emitter laser diode chip overlies, and is rigidly attached to, a respective one of the heat-dissipating surface regions, and each single-emitter laser diode chip's attachment to the top surface is confined to the respective heat-dissipating surface region; wherein each single-emitter laser diode chip is positioned to emit a constituent laser beam above the top surface, the constituent beam comprising a fast axis and a slow axis; (3) beam-management optics for processing the constituent beams, the beam-management optics comprising, for each laser diode chip, a corresponding beam-management-optics portion for processing the corresponding constituent beam, the beam-management-optics portion being for collimating the constituent beam in the constituent beam's fast and slow axes, and for redirecting the constituent beam; wherein the beam-management-optics portions are arranged to combine the constituent beams collimated in the fast and slow axes into a combined beam propagating along a combined-beam line, with the constituent beams' optical axes being located at respective different heights in the combined beam; wherein for each laser diode chip, the corresponding beam-management-optics portion overlies, and is rigidly attached to, the laser diode chip's heat-dissipating surface region; wherein all the attachments to the top surface are thermally dissipative for the thermally dissipative body to dissipate heat from the laser diode chips and the beam-management-optics portions; wherein the laser diode chips include one or more laser diode chips positioned, in top view, on a first side of the combined-beam line, and include one or more laser diode chips positioned, in top view, on a second side of the combined-beam line, the second side being opposite from the first side.