Pan Yuxin, Zhou Shidong, Wang Jiawei, Xu Bin, Liu Jian, Song Qingsong, Xu Jie, Li Dongzhen, Liu Peng, Xu Xiaodong, Xu Jun
Appl Opt. 2018 Nov 10;57(32):9657-9661. doi: 10.1364/AO.57.009657.
A Nd-doped LaMgAlO (Nd:LMA) crystal was grown by the Czochralski method. Room temperature polarized absorption spectra, fluorescence spectra, and fluorescence lifetime of the Nd:LMA crystal were measured and analyzed. The Judd-Ofelt parameters Ω were calculated to be 1.21×10, 3.63×10, and 2.35×10 cm, respectively. The absorption and emission cross sections were calculated. Using a 790-nm diode laser as pump source, continuous-wave laser operation of an a-cut Nd:LMA crystal has been demonstrated with a maximum output power of 1.71 W and slope efficiency of 40.4% for a 1055 nm laser. Low-gain laser operation at 1082 nm is also realized with a maximum output power of 1.46 W and slope efficiency of 34.5%.
采用提拉法生长了掺钕的镧镁铝酸盐（Nd:LMA）晶体。测量并分析了Nd:LMA晶体的室温偏振吸收光谱、荧光光谱和荧光寿命。计算得到的Judd-Ofelt参数Ω分别为1.21×10、3.63×10和2.35×10 cm。计算了吸收和发射截面。以790 nm二极管激光器作为泵浦源，实现了a切割Nd:LMA晶体的连续波激光运转，对于1055 nm激光，最大输出功率为1.71 W，斜率效率为40.4%。在1082 nm处也实现了低增益激光运转，最大输出功率为1.46 W，斜率效率为34.5%。
