Er3+-Yb3+共掺磷酸盐玻璃光波导的FD-BPM分析

阐述了三维波导结构的FD-BPM原理,并用FD-BPM法模拟了波长为1.54μm和0.98μm的高斯光束在Er³⁺-Yb³⁺共掺磷酸盐玻璃光波导内光场分布.与沟道光波导相比,掩埋型光波导内的泵浦光和信号光的散射都非常小,光场分布非常均匀.研究结果表明,掩埋型光波导是制作Er³⁺-Yb³⁺共掺磷酸盐玻璃光波导激光器和放大器的理想波导.

FD-BPM Analysis of Er3+-Yb3+ Co-Doped Phosphate Glass Waveguides

We introduce FD-BPM to three-dimensional waveguides and calculate the refractive index of Er³⁺-Yb³⁺ co-doped phosphate glass waveguides.The simulation for a signal light (1.54 μm) and a pump light (0.98 μm) is performed in a Er³⁺-Yb³⁺ co-doped phosphate glass waveguide with FD-BPM.It shows that the scatter loss can be neglected and the optical field is symmetric in a buried waveguide.A buried Er³⁺-Yb³⁺ co-doped phosphate glass waveguide is demonostrated the best to make Er³⁺-Yb³⁺ co-doped phosphate glass waveguide lasers and amplifiers.