摘要
设计了一种新型的钕玻璃激光器谐振腔以满足激光器高稳定性及高强度激光输出的要求。该激光器利用角锥棱镜阵列作为谐振腔后腔镜,平面镜作输出镜,大尺寸钕玻璃棒作激光工作物质。对激光器进行了实验研究,实验中获得了能量大于450 J的1.06μm激光输出,发散角为0.6 mrad左右,电-光效率为2.1%。实验中采集到的光斑不是一系列振幅(强度)相等的小光斑,而是中间有一个巨峰,在其周围分布着一系列振幅(强度)小得多的次峰。对实验结果进行了解释与讨论,提出了利用角锥棱镜阵列进行激光束相干合成的设想。
A new type of Nd：glass laser resonator with high stability and high power output was designed and demonstrated. With the corner cube array as the cavity mirror and the flat glass as the output mirror, the Nd：glass laser outputs 1.06 um laser pulse with pulse energy more than 450 J, the beam divergent angle about 0.6 mrad, and the electro optic efficiency of 2.1%. The beam spots collected in the experiments are not a series of small beam spots with equal amplitude but a high intensity spot in the middle with many small spots around it. The experimental results are explained and discussed. The idea of laser beam coherent combination using the corner cube array is brought forward.
出处
《中国激光》
EI
CAS
CSCD
北大核心
2009年第1期66-69,共4页
Chinese Journal of Lasers
