激光二极管抽运声光调QNd∶YVO_4板条激光器  

LD Pumped Acoustic-Optic Q-Switched Nd∶YVO_4 Slab Laser

作　　者：闫莹[1] 张恒利[1] 李静[1] 刘洋[1] 沙鹏飞[1] 辛建国[1] 

机构地区：[1]北京理工大学光电学院,北京100081

出　　处：《中国激光》2010年第5期1162-1165,共4页Chinese Journal of Lasers

摘　　要：报道了采用激光二极管(LD)阵列部分端面抽运Nd∶YVO4板条声光(AO)调Q激光输出特性。实验中采用了平-凹稳定谐振腔,输入镜曲率半径500 mm,输出透射率为T=35%,腔长为L=110 mm。Nd∶YVO4板条晶体尺寸为12 mm×10 mm×1 mm,a轴切割,c轴平行于12 mm方向,掺杂浓度为0.3%。在抽运功率为104 W,重复频率为40 kHz时,得到最高平均输出功率为40 W,单脉冲能量为1 mJ,脉宽为42.2 ns,光-光转换效率为38.4%;在重复频率为20 kHz时,得到最高平均输出功率为33.3 W,单脉冲能量为1.66 mJ,最短脉宽为21.1 ns。The output characteristics of an acoustic-optic（AO） Q-switched laser diode（LD） stacks partially end-pumped Nd∶YVO4 slab laser was demonstrated.A stable cavity was employed,the curvature radius of input mirror was 500 mm,the transmission of the output mirror was 35%,and the cavity length is 110 mm.The size of the 0.3% Nd∶YVO4 slab crystal was 12 mm×10 mm×1 mm,with a-cut and the c-axis along its 12 mm-direction.At pumping power of 104 W and repetition rate of 40 kHz,the average output power of 40 W and single pulse energy of 1 mJ were achieved with an optical-to-optical efficiency of 38.4% and pulse width of 42.2 ns;at repetition rate of 20 kHz,the average output power of 33.3 W and single pulse energy of 1.66 mJ were achieved with the pulse width of 21.1 ns.

关 键 词：激光器 板条激光器 激光二极管抽运 Nd∶YVO4板条 声光调Q 稳定腔 

分 类 号：TN248.1[电子电信—物理电子学]