63W green laser based on an intracavity-frequency-doubled lamp-pumped acousto-optic Q-switched Nd:YAG laser - Details

Author：

Liu, Xuesheng (Liu, Xuesheng.) | Xia, Jiaozhen (Xia, Jiaozhen.) | Yan, Xin (Yan, Xin.) | Wang, Zhiyong (Wang, Zhiyong.) (Scholars：王智勇)

Indexed by：

EI Scopus PKU CSCD

Abstract：

532　nm　green　laser　with　an　average　power　of　63　W　based　on　an　intracavity-frequency-doubled　lamp-pumped　acousto-optic(A-O)　Q-switched　Nd:YAG　laser　is　reported.　The　structure　of　dual-lamp-pumped　gold-plated　metal　cavity,　pumping　uniformity　and　the　cooling　uniformity　and　reliability　of　KTP　frequency-doubled　crystal　are　analyzed　and　a　highly　reliable　set　for　cooling　frequency-doubled　crystal　is　developed.　The　optimum　geometric　cavity　length　of　549　mm　is　got　through　studying　the　influence　of　the　frequency　of　A-O　modulator　and　the　temperature　of　frequency-doubled　crystal　on　the　output　power　of　frequency-doubled　laser　with　L-shaped　cavity.　When　the　pumping　power　is　4.9　kW　and　A-O　modulating　frequency　is　4　kHz,　the　532　nm　output　power　is　44　W　with　the　pulse　width　of　80　ns;　When　the　A-O　modulating　frequency　is　10　kHz,　the　532　nm　output　power　is　63　W　with　the　pulse　width　of　140　ns,　frequency-doubled　efficiency　is　64%,　total　electrical-optics　efficiency　is　1.2%　and　beam　quality　is　M2=11.1.

Keyword：

Crystals Crystal structure Solid state lasers Gold plating Beam quality Yttrium aluminum garnet Frequency doublers Neodymium lasers Optical pumping Q switching Switching frequency Frequency modulation Efficiency

Author Community：

[ 1 ] [Liu, Xuesheng]College of Laser Engineering, Beijing University of Technology, Beijing 100124, China
[ 2 ] [Xia, Jiaozhen]Physics Department, Zhejiang Shuren University, Hangzhou 310015, China
[ 3 ] [Yan, Xin]College of Laser Engineering, Beijing University of Technology, Beijing 100124, China
[ 4 ] [Wang, Zhiyong]College of Laser Engineering, Beijing University of Technology, Beijing 100124, China