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基于ZnWO₄/Nd:YAG的一阶斯托克斯拉曼激光器

First-Stokes Raman Lasers Based on ZnWO₄/Nd:YAG

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【作者】任席奎；谢建；阮双琛；裴继红；王欣；于浩海；张怀金；吕启涛；郭丽；曹洪涛；谢圣君；高云峰；何柏林；杜晨林；

【Author】 Ren Xikui;Xie Jian;Ruan Shuangchen;Pei Jihong;Wang Xin;Yu Haohai;Zhang Huaijin;Lü Qitao;Guo Li;Cao Hongtao;Xie Shengjun;Gao Yunfeng;He Bolin;Du Chenlin;College of Information Technology,Shenzhen University;Shenzhen Key Laboratory of Laser Engineering,College of Physics and Optoelectronic Engineering,Shenzhen University;Shenzhen Technology University;State Key Laboratory of Crystal Materials and Institute of Crystal Materials,Shandong University;Han′s Laser Technology Industry Group Co.,Ltd.;

【通讯作者】阮双琛;杜晨林;

【机构】深圳大学信息工程学院；深圳大学物理与光电工程学院深圳市激光工程重点实验室；深圳技术大学；山东大学晶体材料国家重点实验室和晶体材料研究所；深圳市大族激光科技股份有限公司；

【摘要】首次搭建了基于ZnWO₄/Nd:YAG的一阶斯托克斯拉曼激光器,并研究了其在不同重复频率与不同输出耦合镜下的输出特性。采用ZnWO₄晶体作为拉曼晶体,二极管泵浦Nd:YAG晶体产生基频光,实现了波长为1177.6 nm的一阶斯托克斯激光输出。当输出耦合镜的透过率为35%,泵浦功率为22.1 W,重复频率9 kHz时,在1177.6 nm处获得了最大平均输出功率,为886 mW,对应的最短脉宽为2.2 ns,峰值功率为43.9 kW。更多还原

【Abstract】 In this work, a first-Stokes Raman lasers based on ZnWO₄/Nd:YAG was constructed for the first time. The output characteristics of the lasers under different repetition frequencies and with different output couplers were studied. Using ZnWO₄ crystal as the Raman crystal and diode-pumped Nd:YAG crystal to produce the fundamental laser, the first-Stokes laser at 1177.6 nm was realized. A maximum average output power of 886 mW at the first-Stokes wavelength of 1177.6 nm is obtained for output coupling mirror transmittance of 35%, pump power of 22.1 W, and repetition frequency of 9 kHz. Moreover, the corresponding pulse width and output peak power are 2.2 ns and 43.9 kW, respectively.更多还原