Rediscussion on longitudinally pumped quasi three level laser system
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摘要: 考虑了激光上、下能级不同的能级寿命以及上能级自发辐射给下能级布居数所造成的影响,本文修正了Fan等提出的纵向泵浦准三能级系统的理论模型。尽管推导出的结果数学形式上与Fan等结果相似,但其物理意义更明确和丰富。理论计算得到了实验的验证.Abstract: Taking into account that the laser upper and lower levels have different level lifetimes and that the natural decay of the upper level will affect the population of the lower level,the author revi ses the quasi three level model developed by Fan et al. Although the derived predictions are similar to those by Fan mathematically,the revised model is more appropriate to describe the lasing process.The theoretical calculations have a good aggreement with the experimental results.
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Keywords:
- longitudinal pumping /
- Nd：YAG laser
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[1] Fan T Y,Byer R L.IEEE J Q E,1987;QE-23(5):605
[2] Risk W P.J O S A(B),1988;5(7):1412
[3] Mead P F,Bush S P,Davis C C.IEEE J Q E,1994;Q E-30(12):2902
[4] Duczynski E W,Fluber G,Mitzscherlich.Tunable Solid-State Lasers II.Berlin:Springer-Verlag,1986:282
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