摘要
Tm：YLF晶体因其优良的机械性能及光谱特性，成为1．9μm激光器的首选晶体。为获得高效率、高功率的1．9μmTm：YLF激光，分析了Tm：YLF晶体的物化参数、光谱特性以及单掺Tm^3＋激光器的发光机理，从速率方程出发建立了Tm：YLF激光器转换效率的计算模型，利用该模型分析了输出镜透过率、泵浦一激光模式比等参数对Tm：YLF激光器转换效率的影响，并提出了参数设计范围。
With good machine performance and spectrum characteristic, Tm：YLF crystal has become the prior choice for 1.9μm laser. In order to acquire high efficiency and high power of 1.9pμm Tm：YLF laser, physico- chemical parameters, spectrum characteristic of Tm：YLF crystal and radiation mechanism of singly-doped Tm3＋ laser are analyzed in this paper, and then calculation model of conversion efficiency in Tm：YLF laser is established via rateequation. The parameter effect of output coupler transmittance and the ratio of pump-laser mode on conversion efficiency in Tm.YLF laser is analyzed by this calculation model, and the design scope of those pa- rameters is put forward.
出处
《电光系统》
2017年第1期49-55,共7页
Electronic and Electro-optical Systems
