High-Efficient Blue-Light Generation by Intracavity Frequency Doubling with LiB3O5

  • We have investigated the generation of high-efficient blue light in critically type-I phase-matched LiB3O5 (LBO) with intracavity frequency doubling of diode-pumped Nd:YAG laser. A maximum output power of 502 mW at 473 nm blue light was obtained and the overall optical-to-optical efficiency is up to 11.2 %, to the best of our knowledge, this is the highest conversion efficiency for 473 nm output by using a diode pumped Nd:YAG laser through LBO.
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