Huang Jianhua, Chen Yujin, Lin Yanfu, Gong Xinghong, Luo Zundu, Huang Yidong
Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, China.
Opt Express. 2008 Oct 27;16(22):17243-8. doi: 10.1364/oe.16.017243.
An Er:Yb:Sr(3)Y(2)(BO(3))(4) crystal doped with 0.9 at.% Er(3+) and 18.6 at.% Yb(3+) ions was grown by the Czochralski method. End-pumped by diode laser at 970 nm in a hemispherical cavity, 1.3 W quasi-cw laser output around 1.56 microm was achieved in a 1.1-mm-thick Z-cut Er:Yb:Sr(3)Y(2)(BO(3))(4) crystal when the transmission of output coupler is 1.5%. The absorbed pump threshold and slop efficiency of the laser are 4.26 W and 20%, respectively. This crystal has flat and broad gain curve peaked around 1.56 microm, which shows that it is also a potential gain medium for tunable and short pulse lasers.
采用提拉法生长了掺杂0.9 at.% Er³⁺和18.6 at.% Yb³⁺离子的Er:Yb:Sr₃Y₂(BO₃)₄晶体。在半球形腔中用970 nm二极管激光器端面泵浦，当输出耦合器透过率为1.5%时，在1.1 mm厚的Z切Er:Yb:Sr₃Y₂(BO₃)₄晶体中获得了1.3 W、波长约1.56 μm的准连续激光输出。该激光器的吸收泵浦阈值和斜率效率分别为4.26 W和20%。这种晶体具有平坦且宽的增益曲线，峰值在1.56 μm左右，这表明它也是可调谐和短脉冲激光器的潜在增益介质。
