摘要
提出基于变量变换伽辽金法的三维半矢量束传播法(3D-VTGM-SBPM),可直接应用于三维光波导器件的光波传输模拟.采用适当的变量变换,将三维半矢量BPM基本方程归结为一阶常微分方程组,避免了非物理反射且能反映模场的偏振特性,成功的分析了基于脊形光波导的平行定向耦合器的光波传输特性.
A novel three-dimensional semi-vectorial beam propagation method based on the variable transformed galerkin method（3D-VTGM-SBPM） is proposed for directly modeling optical waveguides, and is successfully applied to simulate parallel directional coupler. By adopting proper variable transformation, the basic three-dimensional semi-vectorial BPM equations is reduced to a first-order normal differential equation system. The artificial boundary condition is avoided, and the polarization characteristic of the mode field is displayed.
出处
《光子学报》
EI
CAS
CSCD
北大核心
2006年第2期188-191,共4页
Acta Photonica Sinica
关键词
光波导器件
变量变换伽辽金法
三维束传播法
半矢量
平行定向耦合器
Optical waveguide devices
Variable transformed galerkin method（VTGM）
Three-dimensional beam propagation method（3D-BPM）
Semi vector
Parallel directional coupler
