光学学报, 1990, 10 (12): 1086, 网络出版: 2007-11-12
大口径光束高效三倍频理论和实验研究
Theoretical and experimental study of high efficiency frequency tripling using large-aperture laser beam
摘要
根据三颗耦合波方程,研究了基波与谱波能量比,晶体长度、功率密度、角失配量和匹配类型等诸因素对三倍频最大可获转换效率的影响.大口径光束三倍频实验结果与理论计算相一致.用类型IIKDP晶体三倍频,在中等功率密度下,获得了43%的能量转换效率.
Abstract
On the base of three-wave interaction equations, the dependences of the maximum attainable tripling efficiency on the energy ratio of the fundamental wave to the second harmonic wave, crystal length, power density, input beam divergence and match-type are given. The experimental results of frequency tripling are in agreement with theoretical calculations. With type-II KDP used in tripling, energy conversion efficiency as high as 43% has been obtained for moderate power levels.
丘志仁, 蔡希洁, 郎家俊, 黄奎喜, 葛夏平, 林康春, 李戈平. 大口径光束高效三倍频理论和实验研究[J]. 光学学报, 1990, 10(12): 1086. 丘志仁, 蔡希洁, 郎家俊, 黄奎喜, 葛夏平, 林康春, 李戈平. Theoretical and experimental study of high efficiency frequency tripling using large-aperture laser beam[J]. Acta Optica Sinica, 1990, 10(12): 1086.
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