Concentration and power dependences of level population of 2.8-mu m laser transition in YLF : Er crystals under CW laser diode pumping
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2001
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Spie-Int Soc Optical Engineering
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Abstract
An influence of interionic cross relaxation processes (upconversion, selfquenching) on concentration and power dependences of the inverse population of ^4I_(11/2) and ^4I_(13/2) laser levels in YLF:Er crystals under CW laser-diode pumping were studied both theoretically and experimentally. Computer simulations were carried out taking into account not only pair interaction but also the multi-ion interaction in the whole system. Optimal Er concentration for 3 - µm CW lasing was estimated as 10 - 15%.
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©Spie-Int Soc Optical Engineering.
ISSN: 0277-786X
Laser Optics 2000 Conference (2000. San Petersburgo,Rusia)
The work was partly supported by INTAS, Grant No JNTAS-97-787, and Russian Foundation for Basic Researches, Grants No 98-02-18 102 and 00-02-16637