Design considerations for an electrooptic directional coupler modulator

被引：28
|
作者：
Anwar, N [1 ]
Themistos, C [1 ]
Rahman, BMA [1 ]
Grattan, KTV [1 ]
机构：
[1] City Univ London, Dept Elect Elect & Informat Engn, London EC1V 0HB, England
来源：
JOURNAL OF LIGHTWAVE TECHNOLOGY | 1999年 / 17卷 / 04期
关键词：
electrodes; electrooptic modulation; finite element methods; modeling; numerical analysis;
D O I：
10.1109/50.754789
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 rigorous numerical model is presented for an electrooptic directional coupler (DC) modulator. It was observed that it is possible for such a device to be optimized by the variation of a number of fabrication parameters. The applied field, the induced refractive index changes, and hence the change in the waveguides optical field due to the antisymmetric refractive index change are calculated for an elected structure. Finally, the product of switching voltage and coupling length, the power transfer efficiency, obtained using the least squares boundary residual (LSBR) method, and the optical loss due to the metal electrodes are also given.
引用
收藏
页码：598 / 605
页数：8
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