Large aperture disk standing-wave unstable resonator with intra-cavity adaptive correction  

作　　者：于益 易家玉 徐浏 尚建力 吴晶 童立新 高清松 唐淳 张卫 陈磊 Yi Yu;Jiayu Yi;Liu Xu;Jianli Shang;Jing Wu;Lixin Tong;Qingsong Gao;Chun Tang;Wei Zhang;Lei Chen(Department of Optical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China;Graduate School of China Academy of Engineering Physics,Beijing 100193,China;Institute of Applied Electronics,China Academy of Engineering Physics,Mianyang 621900,China)

机构地区：[1]Department of Optical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China [2]Graduate School of China Academy of Engineering Physics,Beijing 100193,China [3]Institute of Applied Electronics,China Academy of Engineering Physics,Mianyang 621900,China

出　　处：《Chinese Optics Letters》2024年第5期57-61,共5页中国光学快报（英文版）

基　　金：This work was supported by the National Natural Science Foundation of China(No.62105313).

摘　　要：An unstable resonator with seven large aperture ceramic disks and intra-cavity adaptive correction is presented.The composite ceramic disks with absorption rings were adopted to suppress amplified spontaneous emission.An intra-cavity aberration non-conjugate correction based on round-trip wavefront and relaxation iteration was applied in the resonator.After tilt and defocus were corrected in turn,an average output power of 4.5 kW was obtained.The corresponding beam quality factorβwas 19.5.After tilt,defocus,and high order aberrations were corrected,the average output power was increased to 5.4 kW,and the beam quality factorβwas improved to 6.8.

关 键 词：Nd:YAG disk unstable resonator intra-cavity adaptive optics composite ceramic 

分 类 号：TN751.2[电子电信—电路与系统]