350 mJ LD side-pumped Q-switched Nd:YAG laser without water cooling - Details

Author：

Indexed by：

EI Scopus PKU CSCD

Abstract：

A　LD　side-pumped,　high-energy,　high-beam-quality,　Q-switched　all-solid-state　Nd:YAG　laser　without　water　cooling　is　developed.　The　laser　is　integrally　cooled　by　using　a　thermoelectric　cooler　(TEC),　which　is　conducive　to　the　miniaturization　and　portability　of　laser.　The　dimension　of　Nd:YAG　crystal　rod　used　in　experiment　is　φ7　mm×100　mm　and　the　Nd　atom　number　fraction　is　1.1%.　The　maximum　peak　power　of　LD　pumping　is　15　kW.　The　laser　output　at　1064　nm　with　the　maximum　pulse　energy　of　350　mJ,　pulse　width　of　9.7　ns,　optical-electrical　conversion　efficiency　of　6.7%　and　energy　stability　less　than　5%　is　obtained　at　10　Hz　repeat　frequency.　The　beam　qualities　M2　of　horizontal　and　vertical　directions　are　7.7　and　12.3,　respectively.　©　2016,　Chinese　Lasers　Press.　All　right　reserved.

Keyword：

Yttrium aluminum garnet Pumping (laser) Lasers Cooling water Optical frequency conversion High energy lasers Thermoelectric equipment Neodymium lasers Q switching

Author Community：

[ 1 ] [Dong, Jian]Institute of Laser Engineering, Beijing University of Technology, Beijing; 100124, China
[ 2 ] [Liu, Xuesheng]Institute of Laser Engineering, Beijing University of Technology, Beijing; 100124, China
[ 3 ] [Si, Hanying]The 53rd Research Institute of China Electronic Technology Group Corporation, Jinzhou; Liaoning; 121000, China
[ 4 ] [Peng, Chao]Institute of Laser Engineering, Beijing University of Technology, Beijing; 100124, China
[ 5 ] [Liu, Youqiang]Institute of Laser Engineering, Beijing University of Technology, Beijing; 100124, China
[ 6 ] [Cao, Mingzhen]Institute of Laser Engineering, Beijing University of Technology, Beijing; 100124, China
[ 7 ] [Wang, Zhiyong]Institute of Laser Engineering, Beijing University of Technology, Beijing; 100124, China