High power visible laser diode arrays

Abstract

Interest in solid state materials, including chromium doped LiCaAlF/sub 6/ (LiCaF) and chromium doped LiSrAlF/sub 6/ (LiSaF), has created a need for pump diodes in the wavelength range of 650-690 nm. However, these visible laser diodes exhibit rather low output power due to high threshold current densities (J/sub th/), modest external quantum efficiency… (More)

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