980 nm High Power Semiconductor Laser Stacked Arrays with Non-absorbing Window

980 nm InGaAs/GaAs separate confinement heterostructure (SCH) strained quantum well (QW) laser with non-absorbing facets was fabricated by using thermal treatment. MicroChannel coolers with a five-layer thin oxygen-free copper plate structure were designed and fabricated through thermal bonding in hydrogen ambient. The highest CW (continuous wave) output power of 200 W for 5-bar arrays packaged by microchannel coolers was presented.