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Numerical Simulations of Pr3+:ZBLAN Upconversion Ultraviolet Fiber Laser Based on 1S0 Level
Author(s): 
Pages: 55-60
Year: Issue:  1
Journal: CHINESE JOURNAL OF LASERS

Keyword:  激光物理上转换紫外激光粒子数速率方程1S0能级Pr3+:ZBLAN光纤;
Abstract: 在Pr3+:ZBLAN光纤中,运用粒子数速率方程理论,研究用586 nm和335 nm连续激光双光子激发4f组态最高能级1S0,以1S0和3F4为激光上下能级实现250 nm上转换紫外激光的动力学行为,得到阈值抽运功率、激光输出功率、斜率效率和最佳光纤长度等激光参数.结果表明,阈值抽运功率随光纤长度增加而增大,斜率效率随光纤长度增加而减小,光纤较短时,无法获得较高输出功率.掺杂浓度越大则阈值抽运功率越小,斜率效率越大.在选取的特定条件下,斜率效率最高可达16.7%.
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