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用交变隐式差分方向的时域有限差分法 (ADI FDTD)计算了掺Er3 +玻璃平面光波导放大器中光场的分布 .其算法简单 ,结果无条件稳定 ,能完全模拟波导中的光场特性
The distribution of the optical field in an Er3 + -doped glass planar optical waveguide amplifier is calculated by the finite difference time domain (ADI FDTD) method with alternating implicit difference direction. The algorithm is simple and the result is unconditionally stable and can fully simulate the optical field characteristics