Abstract.
A method of determining the spatial configuration of a YCa4O(BO3)3 (YCOB) crystal is introduced. The type-I phase-matching points for the sum-frequency of 1.064 μm and 0.532 μm, as well as the conversion efficiency for YCOB samples cut in different directions, have been measured. When the input intensity is 0.76 GW/cm2, the third-harmonic generation (THG) conversion efficiency for the (106°, 77.2°)-cut YCOB crystal reaches 26.2%, which is the highest that we know so far. Both the calculations and the experiments show that the optimum THG configuration for a YCOB crystal is near (106°, 77.2°), or other equivalent directions in space.
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Received: 11 September 2000 / Revised version: 25 January 2001 / Published online: 27 April 2001
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Wang, Z., Fu, K., Xu, X. et al. The optimum configuration for the third-harmonic generation of 1.064 μm in a YCOB crystal . Appl Phys B 72, 839–842 (2001). https://doi.org/10.1007/s003400100575
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DOI: https://doi.org/10.1007/s003400100575