Highly efficient RTP electro-optic Q-switched Nd: YVO4 laser by end-pumping at 914 nm - 文章详情页

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An　electro-optic　(EO)　Q-switched　Nd:　YVO4　laser　with　high　repetition　rate,　end-pumped　by　continuous-wave　(CW)　laser　diode　(LD)　was　reported.　Using　RbTiOPO4(RTP)　single　crystal　as　an　EO　Q　-switch,　by　matching　mode　of　oscillation　light　and　pump　light,　1　064　nm　laser　output　with　high　efficiency,　high　repetition　and　short　pulse　width　was　realized.　On　the　one　hand,　low　absorption　coefficient　of　914　nm　wavelength　was　adopted　to　pump　Nd:　YVO4　crystal,　so　that　the　heat　distribution　inside　the　crystal　was　uniform,　thereby　achieving　high　quantum　efficiency　while　reducing　the　thermal　effect.　On　the　other　hand,　the　pump　light　spot　radius　was　optimized　to　match　mode　of　pump　light　and　oscillation　light.　At　the　repetition　rate　of　200　kHz,　the　maximum　average　output　power　of　16　W,　full　width　at　half　maximum　of　pulses　of　9　ns,　single　pulse　energy　of　80μJ　and　beam　quality　M2　©　2019,　Editorial　Board　of　Journal　of　Infrared　and　Laser　Engineering.　All　right　reserved.

关键词：

Q switching Q switched lasers Neodymium compounds Single crystals Optical pumping Pulse repetition rate

作者机构：

[ 1 ] [Hu, Xing]Institute of Laser Engineering, Beijing University of Technology, Beijing; 100124, China
[ 2 ] [Cheng, Dejiang]Institute of Laser Engineering, Beijing University of Technology, Beijing; 100124, China
[ 3 ] [Guo, Zhiyan]Institute of Laser Engineering, Beijing University of Technology, Beijing; 100124, China
[ 4 ] [Jiang, Menghua]Institute of Laser Engineering, Beijing University of Technology, Beijing; 100124, China
[ 5 ] [Hui, Yongling]Institute of Laser Engineering, Beijing University of Technology, Beijing; 100124, China
[ 6 ] [Lei, Hong]Institute of Laser Engineering, Beijing University of Technology, Beijing; 100124, China
[ 7 ] [Li, Qiang]Institute of Laser Engineering, Beijing University of Technology, Beijing; 100124, China

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