文章系统地研究了Er3+∶Yb3+共掺磷酸盐玻璃波导的性质, 在稳态情况下建立并求解其准三能级系统的速率方程。利用数值分析的方法模拟了980 nm二极管激光器抽运时输出光功率的特性。计算结果表明：经过优化分析，得到了较高的输出光功率和斜率效率，其阈值功率也比较低。

The properties of Er3+∶Yb3+ co-doped phosphate glass waveguide pumped by LD are systematically investigated and the rate equations of its quasi-three-energy-level system set up and solved under the steady state. The characteristics of the output power of 980nm laser diode in pumping are analyzed by numerical simulation. The results show that Er3+∶Yb3+ co-doped phosphate waveguide lasers with high fairly high output power and slope efficiency and relatively low threshold power can be achieved on optimized analyses.