Liu X, Yang K, Zhao S, Li T, Luan C, Guo X, Zhao B, Zheng L, Su L, Xu J, Bian J
Opt Lett. 2017 Jul 1;42(13):2567-2570. doi: 10.1364/OL.42.002567.
A Tm ion and Y ion co-doped CaF crystal was grown and characterized, in which spectral and lasing performance was presented for the first time, to the best of our knowledge. Under diode end-pumping, in a continuous-wave regime, maximum output power of 453 mW was delivered under an absorption pump power of 2.5 W, corresponding to an optical-to-optical conversion efficiency of 17.9% and a slope efficiency of 21%. With a birefringent quartz plate, wavelength-tunable operation with a tunable range of more than 190 nm was realized. The results show that Tm,Y:CaF is a promising laser crystal operating in a spectral region ranging from 1850 nm to 2050 nm.
生长并表征了一种铥离子和钇离子共掺杂的CaF晶体，据我们所知，首次展示了其光谱和激光性能。在二极管端面泵浦下，在连续波模式下，在2.5W的吸收泵浦功率下实现了453mW的最大输出功率，对应的光光转换效率为17.9%，斜率效率为21%。利用双折射石英板，实现了调谐范围超过190nm的波长可调谐运转。结果表明，Tm,Y:CaF是一种在1850nm至2050nm光谱区域工作的有前景的激光晶体。
