Abstract
High optical-quality Nd 3 + -doped KLu(WO 4) 2 crystal with sizes up to 55 mm × 27 mm × 15 mm has been successfully grown by top-seeded solution growth method. Continuous wave (CW) laser output up to 188.3 mW of Nd 3 + -doped KLu(WO 4) 2 crystals at 1.073 μ m (in the F 3 / 2 4 → I 11 / 2 4 channel) has been achieved with a 1 mm Nd:KLuW crystal under pumping by a 2 W laser-diode (LD) at room temperature. The optical conversion efficiency is 25.3%, which is superior to the former results because 20% optical conversion efficiency was achieved with a 10 mm Nd:KLuW crystal by Kaminskii.
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