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The brightness of broad area laser diodes is limited by a degradation of the beam quality at high output powers. To overcome this limit, a control of slow axis modes at high injection currents is necessary. In the present publication we show an approach to improve the beam quality with optical microstructures in high-power AlGaAs broad area laser diodes with an operating wavelength of 970 nm. The...
In recent years high brilliance semiconductor diode lasers are gaining attraction for the industrial laser market. The emerging generation of multi kilowatt fibre lasers require brilliant pump sources and additionally fibre coupled direct diode lasers increasingly compete with solid state lasers in many industrial areas. This paper investigates diode lasers, which combine several advantages from single...
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