| 基于3D-GM-BPM的平行定向耦合器模拟研究 |
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| 引用本文： | 肖金标,孙小菡,蔡纯,张夕飞,朱建彬,张明德,丁东. 基于3D-GM-BPM的平行定向耦合器模拟研究[J]. 应用科学学报, 2003, 21(1): 5-9 |
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| 作者姓名： | 肖金标 孙小菡 蔡纯 张夕飞 朱建彬 张明德 丁东 |
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| 作者单位： | 东南大学电子工程系,江苏,南京,210096 |
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| 基金项目： | 高等学校博士学科点专项科研基金资助课题(98028638) |
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| 摘 要： | 提出了基于伽辽金法的三维光束传播法（3D－GM－BPM），可直接应用于三维波导光电子器件的光波传输模拟，并用它模拟分析了基于脊形光波导的平行定向耦合器遥光波传输特性。3D－GM－BPM最终归结为求角一阶常微分方程组，导出矩阵小，计算效率高。另外，平面映射边界条件使该方法无须引入人工边界条件，因而消除了非物理反射，有较高的计算精度。
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| 关 键 词： | 3D－GM－BPM 三维光束传播法 伽辽金法 脊形光波导 平行定向耦合器 光波传输模拟 非物理反射 |
| 文章编号： | 0255-8297(2003)01-0005-04 |
| 修稿时间： | 2001-12-14 |
An Investigation of the Modeling for a Parallel Directional Coupler Based on the 3D-GM-BPM |
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| XIAO Jin-biao,SUN Xiao-han,CAI Chun,ZHANG Xi-fei,ZHUJian-bin,ZHANG Ming-de,DING Dong. An Investigation of the Modeling for a Parallel Directional Coupler Based on the 3D-GM-BPM[J]. Journal of Applied Sciences, 2003, 21(1): 5-9 |
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| Authors: | XIAO Jin-biao SUN Xiao-han CAI Chun ZHANG Xi-fei ZHUJian-bin ZHANG Ming-de DING Dong |
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| Abstract: | A three-dimensional beam propagation method based on the Galerkin method (3D-GM-BPM) is proposed for directly modeling a parallel directional coupler based on optical rib waveguides. The computational efficiency is raised due to the small matrix derived from this method, which is reduced to solver a first-order normal differential equation system. A tangent-type function is applied to map the infinite region into closed region. As a result, the artificial boundary condition is eliminated. |
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| Keywords: | three-dimensional beam propagation method (3D-BPM) Galerkin method (GM) optical rib waveguides parallel directional couplers |
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