Continuous-wave optical enhancement cavity with 30-kW average power  

作　　者：柳兴 陆心怡 王焕 颜立新 李任恺 黄文会 唐传祥 Ronic Chiche Fabian Zomer Xing Liu;Xin-Yi Lu;Huan Wang;Li-Xin Yan;Ren-Kai Li;Wen-Hui Huang;Chuan-Xiang Tang;Ronic Chiche;Fabian Zomer(Department of Engineering Physics,Tsinghua University,Beijing 100084,China;UniversitéParis-Saclay,CNRS/IN3 P3,IJCLab,91405 Orsay,France)

机构地区：[1]Department of Engineering Physics,Tsinghua University,Beijing 100084,China [2]UniversitéParis-Saclay,CNRS/IN3 P3,IJCLab,91405 Orsay,France

出　　处：《Chinese Physics B》2023年第3期258-261,共4页中国物理B（英文版）

基　　金：the Fund from Tsinghua University Initiative Scientific Research Program,China(Grant No.20191081195).

摘　　要：Optical enhancement cavity(OEC)is a powerful tool for fundamental research and diagnostics.In this paper,the progress of a continuous-wave OEC to realize of megawatt cavity for a novel light source based on a steady-state microbunching(SSMB)mechanism,is reported.After efficiently suppressing all external noise and optimizing the alignment,mode-matching,and polarization matching,stable and long-term locking is achieved with the help of two feedback loops.The modal instability phenomenon caused by the surface thermoelastic deformation is observed.A pair of D-shape mirrors are utilized to remove the high-order modes.Finally,an intra-cavity average power of 30 kW is reached.

关 键 词：optical enhancement cavity continuous-wave laser modal instability high power cavity 

分 类 号：TN248[电子电信—物理电子学]