Theoretical study on the laser performances of Nd3+:YAG and Nd3+:YVO4 under indirect and direct pumping
JOSA B, Vol. 22, Issue 12, pp. 2564-2569 (2005)
http://dx.doi.org/10.1364/JOSAB.22.002564
Acrobat PDF (373 KB)
Abstract
Based on the model of cw end-pumped four-level system, the laser performances of Nd3+:YAG and Nd3+:YVO4 under indirect and direct pumping Nd3+ 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 Nd3+ lasers. The slope efficiencies for incident and absorbed pumping powers as well as the incident and absorbed pumping thresholds of Nd3+:YAG and Nd3+:YVO4 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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