Finite-element modeling of broad-band traveling-wave optical modulators

被引：52
|
作者：
Koshiba, M [1 ]
Tsuji, Y [1 ]
Nishio, M [1 ]
机构：
[1] Hokkaido Univ, Div Elect & Informat Engn, Sapporo, Hokkaido 0608628, Japan
来源：
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 1999年 / 47卷 / 09期
关键词：
coplanar waveguide; finite-element method; full-wave analysis; microwave photonic device; traveling-wave optical modulator;
D O I：
10.1109/22.788602
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 full-wave finite-element method with hybrid edge/nodal elements is, for the first time, applied to investigating the frequency dispersion of microwave propagation characteristics of broad-band traveling-wave (TW) optical modulators using planar electrode configurations. In order to produce a two-step analysis of electrooptic modulation of optical waveguides, the microwave electrode solver is linked to the optical waveguide solver. Numerical results are shown for an ultrabroad-band TW LiNbO3 Mach-Zehnder optical modulator with a ridge structure, and the necessity of using the full-wave solver is verified by comparing the calculated 3-dB bandwidth and half-wavelength voltage with the experimental data.
引用
收藏
页码：1627 / 1633
页数：7
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