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Acousto-Optically Q-Switched and Vortex NdYAG Laser by Using Circular Dammann Grating for Annular Pumping
Xu Y(徐云); Yu JJ(余俊杰); Han XH(韩侠辉); Li GY(李桂运); Xia KG(夏克贵); Zhou CH(周常河); Li JL(李建郎); xuyunlife@163.com; apuli@siom.ac.cn
2016
Source Publication中国激光
Volume43Issue:6Pages:601002
AbstractAn acousto-optically Q-switched vortex NdYAG laser by annular pumping of circular Dammann grating (CDG)shaping is investigated.The cavity of the laser is composed of a laser crystal,an acousto-optical modulator and a planar output coupling mirror.The pump source is a fiber coupling semiconductor laser of 808nm.The annular intensity distribution of pump light is formed by the first-order diffraction of a CDG with high diffraction efficiency,which is used to end pumped NdYAG laser crystal.The active Q-swith pulse laser is obtained with high optical quality,linear polarization and spiral phase.The obtained power of laser pulse is 470mW,the peak power of laser pulse reaches 588Wand pulse width is 160ns,when the absorbed pump power is 5.6Wand the frequency of acousto-optical modulator is 5kHz.
SubtypeArticle
Other Abstract研究了圆环达曼光栅(CDG)整形的环形光抽运的声光调Q NdYAG激光器。该激光器的腔体由激光晶体、声光调制器以及平面输出耦合镜组成。所用抽运源为光纤耦合808nm半导体激光器,其发射光经过CDG发生一级衍射,产生的环形光场强度分布用于端面抽运NdYAG激光晶体。实验获得了高光束质量、线偏振、且具有螺旋相位的主动调Q脉冲光输出。当吸收抽运功率为5.6W、声光调制器工作频率为5kHz时,激光脉冲的平均功率为470mW,峰值功率达到588W,脉冲宽度为160ns。
Department信息光电
DOI10.3788/CJL201643.0601002
Funding Organization国家自然科学基金 ; 国家自然科学基金 ; 国家自然科学基金 ; 国家自然科学基金
Indexed ByCSCD
Funding Organization国家自然科学基金 ; 国家自然科学基金 ; 国家自然科学基金 ; 国家自然科学基金
WOS IDCSCD:5735521
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Document Type期刊论文
Identifierhttp://ir.siom.ac.cn/handle/181231/27484
Collection信息光学与光电技术实验室
Corresponding Authorxuyunlife@163.com; apuli@siom.ac.cn
Affiliation中国科学院上海光学精密机械研究所
Recommended Citation
GB/T 7714
Xu Y,Yu JJ,Han XH,et al. Acousto-Optically Q-Switched and Vortex NdYAG Laser by Using Circular Dammann Grating for Annular Pumping[J]. 中国激光,2016,43(6):601002.
APA 徐云.,余俊杰.,韩侠辉.,李桂运.,夏克贵.,...&apuli@siom.ac.cn.(2016).Acousto-Optically Q-Switched and Vortex NdYAG Laser by Using Circular Dammann Grating for Annular Pumping.中国激光,43(6),601002.
MLA 徐云,et al."Acousto-Optically Q-Switched and Vortex NdYAG Laser by Using Circular Dammann Grating for Annular Pumping".中国激光 43.6(2016):601002.
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