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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 15 — Jul. 21, 2008
  • pp: 11247–11252

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, and X. Y. Yu  »View Author Affiliations

Optics Express, Vol. 16, Issue 15, pp. 11247-11252 (2008)

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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%.

© 2008 Optical Society of America

OCIS Codes
(140.3530) Lasers and laser optics : Lasers, neodymium
(140.3540) Lasers and laser optics : Lasers, Q-switched
(140.3580) Lasers and laser optics : Lasers, solid-state
(140.5560) Lasers and laser optics : Pumping

ToC Category:
Lasers and Laser Optics

Original Manuscript: March 24, 2008
Revised Manuscript: June 22, 2008
Manuscript Accepted: June 22, 2008
Published: July 11, 2008

X. Ding, H. Zhang, R. Wang, W. Q. Wen, P. Wang, J. Q. Yao, and X. Y. Yu, "High-efficiency direct-pumped Nd:YVO4 laser operating at 1.34 μm," Opt. Express 16, 11247-11252 (2008)

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