采用提拉法生长了双掺Yb3+和Er3+离子浓度分别为18.63%和0.87%(原子分数)的Sr3Y2(BO3)4晶体.利用测量的偏振吸收谱结合Judd-Ofeh理论,拟合得到了该晶体中Er3+离子的偏振和有效J-O参数.测量了Er3+离子4I13/2能级和Yb3+离子2F5/2能级的荧光衰减曲线,并计算了4I13/2能级的荧光量子效率和Yb3+到Er3+的能量传递效率.利用Fuchtbauer-Ladenberg公式计算了Er3+离子4I13/2→4I15/2跃迁的偏振受激发射截面.在平-凹谐振腔中,利用97nm波长光纤耦合准连续半导体激光端面泵浦1.12mm厚的该晶体,当输出镜透过率为1.5%时,获得了最大输出功率为1.3 w和斜率效率为20%的1560 nm附近的激光输出.结果表明,Er3+/Yb3+:Sr3+Y2+(BO3)4晶体是一种优良的1.5～1.6 μm波段激光的增益介质.
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