LD泵浦Nd:YVO_4/Cr^(4+):YAG被动调Q激光器性能实验研究  

Performance experiment of LD-pumped passively Q-switched Nd: YVO_4/Cr^(4+): YAG laser

作　　者：刘彦明 翁润民 刘向辉 LIU Yan-ming WENG Run-min LIU Xiang-hui(No. 72537 Troop, The Northern War Zone, Jinan 250014, China)

机构地区：[1]北部战区72537部队

出　　处：《山东科学》2016年第6期111-116,共6页Shandong Science

摘　　要：采用7.5 cm的直腔,对LD泵浦的Nd:YVO_4/Cr^(4+):YAG被动调Q激光器的脉冲性能进行了相关实验研究。采用两块不同透过率的输出镜和两块不同小信号透过率的Cr^(4+):YAG晶体,分别研究了调Q脉冲的平均输出功率、脉冲宽度、重复频率、单脉冲能量以及峰值功率随泵浦功率的变化关系。在泵浦功率达到13.3 W时,采用6.5%的输出镜和小信号透过率为60%的Cr^(4+):YAG晶体得到了最短脉宽为15 ns且具有高稳定性和可靠性的调Q脉冲输出,其相应的峰值功率可达到3.04 k W,适用于军事国防领域。We investigated the pulse performance of a LD-pumped passively Q-switched Nd： YVO4/Cr^4＋ ：YAG laser with a 7.5 cm straight cavity. We employed two output plane mirrors with different transmissions and two Cr^4＋：YAG crystals with different initial transmissions to research the variation of average output power, pulse width, pulse frequency, single-pulse energy and pulse peak power with pump power. High stability and reliability Q-switched pulse with the shortest pulse width of 15 ns was obtained at T=6.5% and T0 = 60% when pump power was 13.3 W. Its corresponding peak power can reach 3.04 kW, so it has very broad application prospect in military defense.

关 键 词：ND:YVO4晶体 Cr4+:YAG晶体 被动调Q 

分 类 号：TN248.3[电子电信—物理电子学]