Demonstration device for individually addressed high-power diode laser bars

To point out the features and possibilities of individually addressed high-power diode-laser-bars a demonstration device is built. High-power-diode-laser-bars consist of 19 to 50 emitters typically, which are arranged in a linear row. By using p-side up assembly and wedge bonding, each emitter can be connected to its own power supply, so that the output power of each emitter can be controlled independently. A polymer foil, which is fixed on a card made of aluminium is labelled with a individually addressed high-power diode laser bar. The demonstration device and the results of labelling experiments are presented.