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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: G. I. Stegeman
  • Vol. 22, Iss. 12 — Dec. 1, 2005
  • pp: 2564–2569

Theoretical study on the laser performances of Nd 3 + : YAG and Nd 3 + : Y V O 4 under indirect and direct pumping

Zhiyun Huang, Yidong Huang, Yujin Chen, and Zundu Luo  »View Author Affiliations


JOSA B, Vol. 22, Issue 12, pp. 2564-2569 (2005)
http://dx.doi.org/10.1364/JOSAB.22.002564


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Abstract

Based on the model of cw end-pumped four-level system, the laser performances of Nd 3 + : YAG and Nd 3 + : Y V O 4 under indirect and direct pumping Nd 3 + ions into the upper laser level are compared. The model takes the effect of concentration-dependent fluorescence quenching into account and enables the optimization of Nd 3 + lasers. The slope efficiencies for incident and absorbed pumping powers as well as the incident and absorbed pumping thresholds of Nd 3 + : YAG and Nd 3 + : Y V O 4 lasers under indirect and direct pumping are analyzed. When the slope efficiency for the incident pumping power and the incident pumping threshold are concerned, a simple criterion determining which sample is suitable for direct pumping is given; however, in the case of the slope efficiency for the absorbed pumping power and the absorbed pumping threshold, the direct pumping is always better than the indirect pumping.

© 2005 Optical Society of America

OCIS Codes
(140.3430) Lasers and laser optics : Laser theory
(140.3530) Lasers and laser optics : Lasers, neodymium
(140.3580) Lasers and laser optics : Lasers, solid-state

ToC Category:
Lasers and Laser Optics

Citation
Zhiyun Huang, Yidong Huang, Yujin Chen, and Zundu Luo, "Theoretical study on the laser performances of Nd3+:YAG and Nd3+:YVO4 under indirect and direct pumping," J. Opt. Soc. Am. B 22, 2564-2569 (2005)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-22-12-2564


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