High Beam Quality Water-free Pulsed Nd:YAG Laser with Output Energy 1 J - 文章详情页

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摘要：

A　LD　side-pumped　high-energy,　high-beam-quality,　electro-optic　Q-switched　all-solid-state　Nd:YAG　laser　with　thermoelectric　cooler　is　developed.　The　size　of　the　crystal　in　the　oscillator　is　φ7　mm×100　mm　and　the　Nd　atomic　ratio　is　1.1%.　The　maximum　peak　power　of　pumping　LDs　is　15　kW.　At　the　repetition　rate　of　10　Hz,　the　oscillation　output　with　the　maximum　pulse　energy　of　350　mJ　is　obtained　with　the　pulse　width　of　9.7　ns,　the　beam　quality　M2　of　horizontal　and　vertical　directions　is　3.3　and　3.8,　respectively.　The　MOPA　structure　is　used　to　improve　the　final　output　power.　The　dimension　of　the　Nd:YAG　crystal　in　the　first　amplifier　is　φ7.5　mm×134　mm,　when　the　pumping　current　is　80　A　and　the　width　of　pumping　pulse　is　200　μs.　A　700　mJ,　10　ns　laser　pulse　is　obtained　with　the　repetition　frequency　10　Hz.　The　dimension　of　the　Nd:YAG　crystal　in　the　second　amplifier　is　φ8　mm×100　mm　and　the　pumping　current　is　80　A.　The　maximum　output　pulse　energy　is　up　to　1　085　mJ　with　the　pulse　width　of　10　ns.　The　energy　instability　is　less　than　3%,　the　beam　quality　M2　of　the　horizontal　and　vertical　directions　is　3.9　and　4.8,　respectively.　The　miniaturization　and　water-free　of　high　beam　quality　Nd:YAG　laser　at　Joule　level　are　realized.　©　2019,　Science　Press.　All　right　reserved.

关键词：

Crystals Neodymium lasers Optical pumping Pulsed lasers Pulse repetition rate Q switching Thermoelectric equipment Yttrium aluminum garnet

作者机构：

[ 1 ] [Liu, Xue-Sheng]Institute of Laser Engineering, Beijing University of Technology, Beijing; 100124, China
[ 2 ] [Liu, Xue-Sheng]Beijing Engineering Research Center of Laser Technology, Beijing; 100124, China
[ 3 ] [Liu, Xue-Sheng]Key Laboratory of Trans-scale Laser Manufacturing Technology, Ministry of Education, Beijing; 100124, China
[ 4 ] [Yang, Song]Institute of Laser Engineering, Beijing University of Technology, Beijing; 100124, China
[ 5 ] [Yang, Song]Beijing Engineering Research Center of Laser Technology, Beijing; 100124, China
[ 6 ] [Yang, Song]Key Laboratory of Trans-scale Laser Manufacturing Technology, Ministry of Education, Beijing; 100124, China
[ 7 ] [Si, Han-Ying]Science and Technology on Electro-optical Information Security Control Laboratory, Tianjin; 300308, China
[ 8 ] [Zou, Ji-Yue]Institute of Laser Engineering, Beijing University of Technology, Beijing; 100124, China
[ 9 ] [Zou, Ji-Yue]Beijing Engineering Research Center of Laser Technology, Beijing; 100124, China
[ 10 ] [Zou, Ji-Yue]Key Laboratory of Trans-scale Laser Manufacturing Technology, Ministry of Education, Beijing; 100124, China
[ 11 ] [Yan, An-Ru]Institute of Laser Engineering, Beijing University of Technology, Beijing; 100124, China
[ 12 ] [Yan, An-Ru]Beijing Engineering Research Center of Laser Technology, Beijing; 100124, China
[ 13 ] [Yan, An-Ru]Key Laboratory of Trans-scale Laser Manufacturing Technology, Ministry of Education, Beijing; 100124, China
[ 14 ] [Wang, Cong-Cong]Institute of Laser Engineering, Beijing University of Technology, Beijing; 100124, China
[ 15 ] [Wang, Cong-Cong]Beijing Engineering Research Center of Laser Technology, Beijing; 100124, China
[ 16 ] [Wang, Cong-Cong]Key Laboratory of Trans-scale Laser Manufacturing Technology, Ministry of Education, Beijing; 100124, China
[ 17 ] [Liu, You-Qiang]Institute of Laser Engineering, Beijing University of Technology, Beijing; 100124, China
[ 18 ] [Liu, You-Qiang]Beijing Engineering Research Center of Laser Technology, Beijing; 100124, China
[ 19 ] [Liu, You-Qiang]Key Laboratory of Trans-scale Laser Manufacturing Technology, Ministry of Education, Beijing; 100124, China
[ 20 ] [Wang, Zhi-Yong]Institute of Laser Engineering, Beijing University of Technology, Beijing; 100124, China
[ 21 ] [Wang, Zhi-Yong]Beijing Engineering Research Center of Laser Technology, Beijing; 100124, China
[ 22 ] [Wang, Zhi-Yong]Key Laboratory of Trans-scale Laser Manufacturing Technology, Ministry of Education, Beijing; 100124, China

通讯作者信息：

[liu, xue-sheng]key laboratory of trans-scale laser manufacturing technology, ministry of education, beijing; 100124, china;;[liu, xue-sheng]beijing engineering research center of laser technology, beijing; 100124, china;;[liu, xue-sheng]institute of laser engineering, beijing university of technology, beijing; 100124, china

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