High-efficiency direct-pumped Nd:YVO4 laser operating at 1.34 μm

X. Ding, H. Zhang, R. Wang, W. Q. Wen, P. Wang, J. Q. Yao, X. Y. Yu

Research output: Contribution to journalArticlepeer-review

45 Scopus citations


We report a high-efficiency Nd:YVO4 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:YVO4 crystals with 1.0- and 3.0-at.% Nd3+ doping under 879-nm pumping was measured respectively. Comparative results obtained by traditional pumping at 808 nm into the highly absorbing 4F5/2 level were presented, showing that the slope efficiency of the 1.0-at.% Nd:YVO4 laser under 879-nm pumping was 10.5% higher than that of 808-nm pumping. In a 4-mm-thick, 1.0-at.% Nd:YVO4 crystal, a high slope efficiency of 64% was achieved under 879-nm pumping, with an optical-to-optical conversion efficiency of 41.3%.

Original languageEnglish
Pages (from-to)11247-11252
Number of pages6
JournalOptics Express
Issue number15
StatePublished - 21 Jul 2008
Externally publishedYes


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