一种光波导的新颖数值算法的分析

本文采用了一种新颖的数值算法用来模拟计算光波导器件，主要以集成光学中重要的器件单元劈形与Y分岔为例，通过对数值计算引起的传播常数的误差以及传输系数的分析，对算法进行了简要评估，并将算法定量地与广为使用的有限差分光束传输法（FD－BPM）做了对比，从而突出了该算法的优点与不足之处。

A Novel Numerical Algorithm for Integrated Optical Waveguide

In this paper, a novel numerical approach to calculate properties of the integrated optical waveguides is introduced. Based on the calculated propagation constants and optical power transmissions along taper and Y-branch optical waveguides, a briefly review of the approach is given. We compared the novel approach with widely used FD-BPM quantitatively, from which advantages and limitations of the approach are derived.