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基于CFD模拟仿真技术,优化了激光腔体散热鳍片的微通道结构和数量,采用折叠腔LD双端泵浦抽运方式,使用高速电光Q开关进行调制、LBO晶体进行倍频和和频。在重复频率为15kHz时得到最大输出功率为12.34 W和最窄脉宽为12ns的稳定紫外脉冲输出,基频光的光-光转换效率约为41%。
Based on the CFD simulation technology, the microchannel structure and number of the cooling fin in the laser cavity are optimized. The LD cavity in the folding cavity is pumped by the double-ended pump, and the high-speed electro-optic Q-switch is used for modulation. The LBO crystal is multiplied and summed. When the repetition frequency is 15kHz, the stable UV pulse output with the maximum output power of 12.34 W and the narrowest pulse width of 12 ns is obtained, and the light-to-light conversion efficiency of the fundamental frequency light is about 41%.