| Autor: |
Kyu-Pyung Hwang, Jae-Yong Ihm |
| Rok vydání: |
2006 |
| Předmět: |
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| Zdroj: |
Journal of Lightwave Technology. 24:1048-1056 |
| ISSN: |
0733-8724 |
| Popis: |
Accurate time-domain modeling of electrically long structures such as dielectric waveguides in integrated optics often demands prohibitive computational cost. In this paper, an efficient fourth-order finite-difference time-domain (FDTD) method is investigated in a two-dimensional (2-D) transverse electric (TE) case. The method is a combination of fourth-order staggered backward-differentiation time integrator and fourth-order staggered spatial discretization. A rigorous stability and dispersion analysis is conducted to show its useful numerical characteristics. Fourth-order convergence of the numerical scheme is demonstrated by monitoring numerical errors in the L/sub 2/ norm in 2-D cavities. Numerical efficiency of the fourth-order method is validated through its applications for full-wave time-domain simulations of long 2-D optical waveguide structures. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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