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

被引：41

作者：

Ding, X. ^{[1
]}

Zhang, H. ^{[1
]}

Wang, R. ^{[1
]}

Wen, W. Q. ^{[1
]}

Wang, P. ^{[1
]}

Yao, J. Q. ^{[1
]}

Yu, X. Y. ^{[2
]}

机构：

[1] Tianjin Univ, Inst Laser Optoelect, Coll Precis Instrument & Optoelect Engn, Tianjin 300072, Peoples R China

[2] Nankai Univ, Coll Phys Sci, Photon Res Ctr, Tianjin 300071, Peoples R China

来源：

OPTICS EXPRESS | 2008年 / 16卷 / 15期

关键词：

D O I：

10.1364/OE.16.011247

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

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 F-4(5/2) 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%. (C) 2008 Optical Society of America.

引用

页码：11247 / 11252

页数：6

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