Abstract
It is reported that efficient blue laser generation at 473 nm in a BIBO crystal at type-I phase matching direction of ( θ, ϕ)=(18.3°,90°) performed with a diode-pumped Nd:YAG laser. With incident pump power of 1.6 W , output power of 183 mW at 473 nm has been obtained using a 5.0 mm -long BIBO crystal. The optical conversion efficiency was up to 11.4%. It was found that the intracavity frequency doubling efficiency is about 50% greater than that obtained with a 10 mm -long type-I phase-matching LBO crystal.
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