AN ASSESSMENT OF FINITE-DIFFERENCE BEAM PROPAGATION METHOD

被引：401

作者：

CHUNG, Y

DAGLI, N

机构：

[1] Department of Electrical and Computer Engineering, University of California, Santa Barbara

来源：

IEEE JOURNAL OF QUANTUM ELECTRONICS | 1990年 / 26卷 / 08期

关键词：

Computer Simulation - Integrated Optics - Mathematical Techniques--Finite Difference Method - Mathematical Transformations--Fast Fourier Transforms - Waveguides; Optical;

D O I：

10.1109/3.59679

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A finite difference beam propagation method (FD-BPM) is outlined and assessed in comparison with a conventional beam propagation method (FFT-BPM) which uses fast Fourier transformation, In the comparative study three straight waveguides with different index profiles that are frequently encountered in integrated optics are utilized. Using both methods normalized effective index values of the eigenmodes of these waveguides are calculated and compared with the exact values obtained from analytical expressions. As a further accuracy criteria, the power loss due to numerical errors, when an eigenmode of a waveguide is excited, is evaluated. Based on this comparison accuracy, computational efficiency, and stability of the FD-BPM are assessed. © 1990 IEEE

引用

页码：1335 / 1339

页数：5

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