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Influence of upconversion effect on Er3+, Yb3+co-doped phosphate glass lasers

Wu Zhao-Hui Song Feng Liu Shu-Jing Qin Bin Su Jing Tian Jian-Guo Zhang Guang-Yin

Influence of upconversion effect on Er3+, Yb3+co-doped phosphate glass lasers

Wu Zhao-Hui, Song Feng, Liu Shu-Jing, Qin Bin, Su Jing, Tian Jian-Guo, Zhang Guang-Yin
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  • Received Date:  20 December 2004
  • Accepted Date:  22 June 2005
  • Published Online:  20 December 2005

Influence of upconversion effect on Er3+, Yb3+co-doped phosphate glass lasers

  • 1. 南开大学光子学中心,天津 300071

Abstract: An analytical model of cw longitudinally diode-pumped Er3+,Yb3+ co-doped phosphate glass lasers that includes the influence of cooperative upconversion and cumulative energy transfer effects has been developed. The results of general output modeling were applied to a laser with Gaussian beams, and numerical calculation has been made to study the influence of cooperative upconversion and cumulative energy transfer effects, where the dependence of laser output on the influence of cooperative upconversion and cumulative energy transfer effects was investigated in particular. Especially, we find that the influence of cooperative upconversion on the threshold can be up to 22%. The model is in good agreement with measurements of the laser in a plane-plane cavity. Further numerical analysis will be developed.Our results are useful for optimizing the parameters of this kind of lasers.

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