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6.5-ns actively Q-switched Nd:YVO4 laser operating at 1.34 μm

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【作者】 赵永光； 王正平； 于浩海； 郭磊； 陈丽娟； 庄世栋； 孙洵； 胡大伟； 许心光；

【Author】 Yongguang Zhao1,Zhengping Wang1,Haohai Yu1,Lei Guo1,Lijuan Chen1,Shidong Zhuang1,3,Xun Sun1,Dawei Hu2,and Xinguang Xu1 1State Key Laboratory of Crystal Materials and Institute of Crystal Materials,Shandong University,Ji’nan 250100,China 2Institute of Science Technology for National Defence,Shandong University,Ji’nan 250100,China 3School of Science,Shandong Jianzhu University,Ji’nan 250101,China

【机构】 State Key Laboratory of Crystal Materials and Institute of Crystal Materials,Shandong University； School of Science,Shandong Jianzhu University； Institute of Science Technology for National Defence,Shandong University；

【摘要】 With a plano-concave cavity,diode-pumped continuous-wave(CW) and actively Q-switched Nd:YVO4 laser operating at 1.34 μm is demonstrated.Maximum CW output power of 4.76 W and Q-switched average output power of 2.64 W are obtained with output coupler(transmission T = 3.9%).For the Q-switching operation,the theoretically calculated pulse energy and pulse width,with a pulse repetition frequency(PRF) range of 5-40 kHz,coincide with the experimental results.With a T = 11.9% output coupler,the maximum peak power of 24.3 kW and minimum pulse width of 6.5 ns are obtained when the PRF is 10 kHz.To the best of our knowledge,this is the shortest actively Q-switched pulse duration ever obtained in a 1.3-μm Nd-doped vanadate laser.

【Abstract】 With a plano-concave cavity,diode-pumped continuous-wave(CW) and actively Q-switched Nd:YVO4 laser operating at 1.34 μm is demonstrated.Maximum CW output power of 4.76 W and Q-switched average output power of 2.64 W are obtained with output coupler(transmission T = 3.9%).For the Q-switching operation,the theoretically calculated pulse energy and pulse width,with a pulse repetition frequency(PRF) range of 5-40 kHz,coincide with the experimental results.With a T = 11.9% output coupler,the maximum peak power of 24.3 kW and minimum pulse width of 6.5 ns are obtained when the PRF is 10 kHz.To the best of our knowledge,this is the shortest actively Q-switched pulse duration ever obtained in a 1.3-μm Nd-doped vanadate laser.

【关键词】 switched； repetition； pumped； coupler； concave； mirror； pumping； switching； absorbed； lasing；
【基金】 supported by the National Natural Science Foundation of China(No.60978027);the Natural Science Foundation of Shandong Province (Nos.2009ZRB01907 and ZR2010EM001);the Program for New Century Excellent Talents in University (No.NCET-10-0526);the Independent Innovation Foundation of Shandong University(Nos.2009TS129, 2010JC015,and 2010TS090)
  • 【文献出处】 Chinese Optics Letters ,中国光学快报(英文版) , 编辑部邮箱 ,2011年08期
  • 【分类号】TN248.1
  • 【被引频次】2
  • 【下载频次】49
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