High-quality CsB3O5 crystals were grown by the modified top-seeded solution growth technique. We obtained 3.0 W of 355-nm output by using 8-mm-long type-II CsB3O5. The conversion efficiency from the fundamental light to the third harmonic reached 30%, which was 1.5 times higher than that obtained by a type-II LiB3O5 crystal under the same experimental condition.

© 2003 Optical Society of America

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