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《Laser Technology》 2012-01
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Simulation and structure design of a high power laser mirror with self-compensation of thermal distortion

PENG Yu-feng1,WU Ding-yun2,ZHANG Yi1,CHENG Zu-hai3(1.College of Physics and Information Engineering,Henan Normal University,Xinxiang 453007,China;2.Department of Physics & Electronic Engineering,Zhoukou Normal University,Zhoukou 466001,China;3.Wuhan National Laboratory for Optoelectronics,Huazhong University Science and Technology,Wuhan 430074,China)  
A high-power laser mirror with self-compensation for thermal distortion was presented and numerically simulated on the basis of its thermal deformation behavior after optimizing its substrate structure.When 7kW laser was input in 17cm diameter,and the reflectivity of the mirror was 98%,the difference between central maximum thermal distortion and boundary thermal distortion within laser radiation region on the mirror surface for the general silicon substrate(peak valley values) was 0.167μm,0.174μm and 0.172μm respectively,under the radiation time of 2s,4s and 10s.However,the thermal distortion difference(peak valley values) of the laser mirror with self-compensation of thermal distortions was 0.092μm,0.052μm,0.027μm,respectively.The study results are useful for improving the heat-effective stability and beam quality.
【Fund】: 国家自然科学基金资助项目(61077037);; 河南省基础与前沿技术计划资助项目(102300413214)
【CateGory Index】: TN248
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【Citations】
Chinese Journal Full-text Database 2 Hits
1 ZHANG Yao-ning, PENG Yu-feng, ZHOU Chi-ming, YU Wen-feng, CHENG Zu-hai (National Key Laboratory of Laser Technology, Huazhong University of Science and Technology, Wuhan 430074, China);Research of complex structure of mirror cooled by phase change[J];High Power Laser & Particle Beams;2000-S1
2 LI Xiao-feng~(**), ZHANG Bai-lei, LIN Mi, and QI Li-meiInstitute of Physical Electronics,UESTC of China,Chengdu 610054,China;Numerical analysis of thermal distortion of the mirror in space-to-ground laser communication links[J];光电子快报(英文版);2005-03
【Co-citations】
Chinese Journal Full-text Database 3 Hits
1 LIU Yi-hong,YU Wen-feng,SUN Feng,CHENG Zu-hai,ZHANG Yao-ning (National Laboratory of Laser Technology,HUST,Wuhan 430074,China);Finite element simulating about laser radiation of semiconductor-cooled composite phase change silicon mirror[J];Laser Technology;2005-01
2 SUN Feng, YU Wen feng, CHENG Zu hai, ZHANG Yao ning, ZHOU Ci ming (State Key Laboratory of Laser Technology, Huazhong University of Science and Technology, Wuhan 430074, China);Deflection of phase change cooled mirror induced by irregular facule[J];High Power Laser & Particle Beams;2003-04
3 SUN Feng,CHENG Zuhai,ZHANG Yaoning,YU Wenfeng,ZHOU Cimingf Science and Technology, Wuhan 430074, China);Effects of clamping methods for laser mirrors on thermal deformation[J];High Power Laser & Particle Beams;2003-08
【Secondary Citations】
Chinese Journal Full-text Database 1 Hits
1 Zhang Yaoning Cheng Zuhai Ku Gen Li Fen Zhu Songlin (National Laboratory of Laser Technology, Huazhong University of Science and Technology, Wuhan 430074) Xia Jinan (Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Sh;A Study of Thermal Distortion of Silicon Mirror[J];CHINESE JOURNAL OF LASERS;1997-08
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