摘要
Ho∶YAG晶体因其优良的机械性能及光谱特性,成为高重频2 mm激光器的可选晶体之一。为获得高效率、高功率、高重频2 mm Ho∶YAG激光器,分析了单掺Ho3+激光器的发光机理,从速率方程出发建立了高重频Ho∶YAG激光器转换效率的计算模型,利用该模型分析了输出镜透射率、激光模式大小、抽运-激光模式比和离子掺杂浓度等参数对高重频Ho∶YAG激光器转换效率的影响,并提出了参数设计范围,通过实验对理论模拟结果进行了验证。
With good machine performance and spectrum characteristic, Ho∶YAG crystal has become one of the choices for high-repetition-frequency 2 mm laser. In order to acquire high efficiency and high power 2 mm Ho∶YAG laser with high- repetition- frequency, radiation mechanism of singly- doped Ho3 ＋laser are analyzed. And the calculation model of conversion efficiency in high-repetition-frequency Ho∶YAG laser is established through rate equation. The effects of the parameters such as output coupler transmittance, laser mode size, ratio of pump-laser mode and Ho-doping atomic number fraction, on the conversion efficiency in high-repetition-frequency Ho∶YAG laser are analyzed by this calculation model. The design scope of those parameters is also put forward. The theoretical simulation results are verified through experiments.
出处
《中国激光》
EI
CAS
CSCD
北大核心
2015年第8期84-91,共8页
Chinese Journal of Lasers
