Open AccessHigh-efficiency direct-pumped Nd:YVO4 laser operating at 134 μm
Author(s) -
Xin Ding,
H. Zhang,
R. Wang,
Wuqi Wen,
P. Wang,
Jianquan Yao,
Xiaoyang Yu
Publication year - 2008
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.16.011247
Subject(s) - slope efficiency , materials science , energy conversion efficiency , optics , laser , sapphire , crystal (programming language) , optical pumping , ti:sapphire laser , solid state laser , neodymium , doping , laser pumping , optoelectronics , fiber laser , wavelength , programming language , physics , computer science
We report a high-efficiency Nd:YVO(4) laser operating at 1342 nm pumped by an all-solid-state Q-switched Ti:Sapphire laser at 879 nm. A plano-concave cavity was optimized to obtain high efficiency and good beam quality. Output power for two Nd:YVO(4) crystals with 1.0- and 3.0- at.% Nd(3+) doping under 879-nm pumping was measured respectively. Comparative results obtained by traditional pumping at 808 nm into the highly absorbing (4)F(5/2) level were presented, showing that the slope efficiency of the 1.0-at.% Nd:YVO(4) laser under 879-nm pumping was 10.5% higher than that of 808-nm pumping. In a 4-mm-thick, 1.0-at.% Nd:YVO(4)4 crystal, a high slope efficiency of 64% was achieved under 879-nm pumping, with an optical-to-optical conversion efficiency of 41.3%.