Nd:YAG平面波导激光放大器效率的影响因素  

Influence Factors on Efficiency of Nd:YAG Planar Waveguide Laser Amplifier

作　　者：王君涛[1,2] 汪丹[1,2] 苏华[2,3] 周唐建[1,2] 徐浏[1,2] 吴振海[1,2] 雷军[1,2] 吕文强[1,2] 陈月健[1,2] 童立新[1,2] 胡浩[1,2] 高清松[1,2] 

机构地区：[1]中国工程物理研究院应用电子学研究所,四川绵阳621900 [2]中国工程物理研究院高能激光科学与技术重点实验室,四川绵阳621900 [3]北京应用物理与计算数学研究所,北京100094

出　　处：《中国激光》2017年第12期39-44,共6页Chinese Journal of Lasers

基　　金：中国工程物理研究院高能激光科学与技术重点实验室基金(HEL-2015-02)

摘　　要：以Nd:YAG平面波导为激光放大器增益介质,研究了1064nm激光在放大过程中光光效率的影响因素;采用基于棒状Nd:YAG的1064nm自由运转振荡器为种子源,放大器抽运源为808nm半导体激光器阵列,抽运光脉宽与种子光脉宽相同且同步输出;Nd:YAG平面波导的尺寸为60mm×10mm×1mm,芯层厚度为100μm。对比研究了种子光能量、抽运能量和抽运方向对激光放大效率的影响。结果表明,当注入种子光能量为10mJ时,实现了100Hz脉冲重复频率下最大能量为713mJ的准连续激光输出,此时的抽运能量为1478mJ,对应的光光效率为47.6%。Taking Nd：YAG planar waveguide as gain medium of a laser amplifier,we study the factors affecting optical-optical efficiency of laser with wavelength of 1064 nm during amplification.A free operational Nd：YAG rod oscillator with wavelength of 1064 nm is used as seed source,and a diode laser array with wavelength of 808 nm is used as the pump source.The pulse width of pump beam is equal to that of seed,and the output of pump beam and seed is synchronous.The size of the Nd：YAG planar waveguide is 60 mm×10 mm×1 mm,and the core thickness is 100μm.The effects of seed energy,pump energy,and pump direction on the laser amplification efficiency are studied.The results show that when the input seed energy is 10 mJ,the quasi-continued laser with maximum energy of 713 mJ is obtained at the pulse repetition frequency of 100 Hz,the pump pulse energy is 1478 mJ,and the corresponding optical-optical efficiency is 47.6%.

关 键 词：激光器 激光放大器 平面波导 放大效率 端面抽运 

分 类 号：TN0[电子电信—物理电子学]