Abstract: A laser welding method includes guiding laser pulses to a workpiece surface of workpieces and adjusting a power of the laser pulses according to a time pulse curve to spot weld the workpieces together. The time pulse curve has a first pulse section having a rising pulse flank for generating a melting temperature and subsequently a vaporization temperature in the workpieces, a second pulse section for melt bath generation having a vapor channel in the workpieces, a third pulse section having a pulse flank which initially drops vertically to at least ¾ of the power at an end of the second pulse section and subsequently drops more flatly for reversion of the vapor channel, and a fourth pulse section having a low pulse plateau and a level of between ? and ¼ of the power at the end of the second pulse section for oscillation of the melt.

Abstract: A laser welding method includes guiding laser pulses to a workpiece surface of workpieces and adjusting a power of the laser pulses according to a time pulse curve to spot weld the workpieces together. The time pulse curve has a first pulse section having a rising pulse flank for generating a melting temperature and subsequently a vaporization temperature in the workpieces, a second pulse section for melt bath generation having a vapor channel in the workpieces, a third pulse section having a pulse flank which initially drops vertically to at least ¾ of the power at an end of the second pulse section and subsequently drops more flatly for reversion of the vapor channel, and a fourth pulse section having a low pulse plateau and a level of between ? and ¼ of the power at the end of the second pulse section for oscillation of the melt.

Abstract: A solid-state laser arrangement includes a plate-like solid body including a laser-active medium, a heat sink, a layer of adhesive between a carrier face of the heat sink and the plate-like solid body, and a reflective coating on a side of the plate-like solid body facing the adhesive layer, in which the adhesive layer is completely shielded from radiation from the plate-like solid body by a radiation-impermeable region between the side of the plate-like solid body facing the adhesive layer and the carrier face of the heat sink.

Abstract: A solid-state laser arrangement includes a plate-like solid body including a laser-active medium, a heat sink, a layer of adhesive between a carrier face of the heat sink and the plate-like solid body, and a reflective coating on a side of the plate-like solid body facing the adhesive layer, in which the adhesive layer is completely shielded from radiation from the plate-like solid body by a radiation-impermeable region between the side of the plate-like solid body facing the adhesive layer and the carrier face of the heat sink.