Abstract
We report, for the first time, efficient intracavity second-harmonic generation (SHG) at 1.06 μm in a non-linear optical crystal, BiB3O6 (BIBO), at a type-I phase-matching direction of (θ,ϕ)=(168.9°,90°), performed with a LD end-pumped cw Nd:YVO4 laser. A cw SHG output power of 364 mW has been obtained using a 1.9-mm-thick BIBO crystal. The optical conversion efficiency was 12.2% and the corresponding effective intracavity SHG efficiency was determined to be 32.4%. It was found that the intracavity SHG efficiency is greater than that obtained with a type-II phase-matching KTiOPO4 (KTP) crystal with a thickness of 3 mm. The effective non-linear optical coefficient (deff) ratio of BIBO to that of KTP, determined experimentally, is 1.23:1.
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Received: 7 May 2001 / Revised version: 6 July 2001 / Published online: 19 September 2001
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Du, C., Wang, Z., Liu, J. et al. Efficient intracavity second-harmonic generation at 1.06 μm in a BiB3O6 (BIBO) crystal. Appl Phys B 73, 215–217 (2001). https://doi.org/10.1007/s003400100634
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DOI: https://doi.org/10.1007/s003400100634