Abstract
High power diode lasers are widely used as the pump sources for fiber lasers and solid-state lasers, or the light sources for direct diode laser systems. To meet the emerging needs of fiber lasers, solid state lasers and direct diode laser systems, diode lasers are moving towards higher volume manufacturing, along with higher performance and lower cost. In this paper, we will present our progresses in these areas. We have set up a 6" GaAs wafer production line for high power diode laser chips, which includes MOCVD epitaxy and wafer fabrication. With the 6" wafer production line, we are producing multi-million chips per month for fiber laser pumping. The 6" wafers show great uniformity and reproducibility. Device performance is outstanding, with near 70% efficiency and high CW roll-over power.
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