Efficient pumping scheme for neodymium-doped materials by direct excitation of the upper lasing level
Applied Optics, Vol. 38, Issue 36, pp. 7382-7385 (1999)
http://dx.doi.org/10.1364/AO.38.007382
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Abstract
An efficient pumping scheme that involves direct excitation of the upper lasing level of the Nd3+ ion is demonstrated experimentally. The results obtained for direct upper laser level pumping of Nd:YAG R2 (869 nm) and Nd:YVO4 (880 nm) were compared with traditional ~808-nm pump band excitation. A tunable cw Ti:sapphire laser was used as the pump source. In Nd:YAG, the oscillator slope efficiency increased by 10% and the threshold decreased by 11%. In Nd:YVO4, the slope efficiency increased by 5% and the threshold decreased by 11%. These results agree with theory. The increase in optical efficiency indicates that laser material thermal loading can be substantially reduced.
© 1999 Optical Society of America
[Optical Society of America ]
OCIS Codes
(140.3530) Lasers and laser optics : Lasers, neodymium
(140.5560) Lasers and laser optics : Pumping
Citation
Raphael Lavi, Steven Jackel, Yitshak Tzuk, Michael Winik, Eyal Lebiush, Mordechai Katz, and Idan Paiss, "Efficient pumping scheme for neodymium-doped materials by direct excitation of the upper lasing level," Appl. Opt. 38, 7382-7385 (1999)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-38-36-7382
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