Yb∶YAB晶体的生长和激光性能研究

Growth of Yb∶YAB Crystal and Its Laser Performance

采用助熔剂法生长了不同配比的激光自倍频晶体Yb∶YAl3(BO3) 4(Yb∶YAB) ,在 10 %的Yb∶YAB晶体中 ,用输入功率为 1 4W ,波长为974nm的光纤耦合二极管激光器泵浦得到 160mW的高效连续绿光输出 ,能量转换效率为 11 3% ,光 光转换效率为 3 9%。并采用石英双折射滤波片测得其调谐波长范围为 5 13 0～ 5 45 8nm。增大泵浦能量 ,在 977nm处采用二极管泵浦测得其自倍频输出绿光能量为 1 1W ,总转换效率为 10 %。

Single crystal of Yb x Y 1- x Al 3(BO 3) 4 (Yb∶YAB) was grown by using flux method with potassium trimolybdate. 160 mW efficient cw green output was obtained by a fibre coupled 976 nm laser diode pumping. The conversion efficiency is greater than 11 3%, and the pumping conversion efficiency is 3 9%. Tunable green output from 513 0 to 545 8 nm is also demonstrated with a quartz birefringent filter. Enhancing the incident pump power, 1 1 W cw green output is reached.