Modeling and analysis of LiNbO/sub 3/ optical modulators with a ridge structure

Author

Abou El-Fadl, A.A. ; Mostafa, K.A. ; Ablenin, A.A. ; Taha, T.E.

Author_Institution

Fac. of Electron. Eng., Menoufia Univ., Egypt

fYear

2000

fDate

12-15 Sept. 2000

Firstpage

227

Lastpage

228

Abstract

Hybrid-mode analysis is carried out for coplanar waveguide applicable to Z-cut Ti: LiNbO/sub 3/ optical modulators with a ridge structure. The analysis is based on the integral equations. Generalized trial quantities are introduced as virtual adjustable sources in the equivalent representation of the structure. The microwave effective index, attenuation constant and characteristic impedance as functions of frequency are computed. The effect of thickness of the buffer layer on the microwave effective index is also investigated. The obtained results are compared with data furnished by the literature. A good accuracy is obtained.

Keywords

coplanar waveguides; integral equations; integrated optics; lithium compounds; microwave photonics; optical modulation; ridge waveguides; titanium; LiNbO/sub 3/:Ti; attenuation constant; buffer layer; characteristic impedance; coplanar waveguide; equivalent representation; hybrid-mode analysis; integral equations; microwave effective index; optical modulators; ridge structure; virtual adjustable sources; Buffer layers; Coplanar waveguides; Electrodes; Electron optics; Frequency; Impedance; Optical attenuators; Optical buffering; Optical modulation; Optical waveguides;

fLanguage

English

Publisher

ieee

Conference_Titel

Infrared and Millimeter Waves, 2000. Conference Digest. 2000 25th International Conference on

Conference_Location

Beijing, China

Print_ISBN

0-7803-6513-5

Type

conf

DOI

10.1109/ICIMW.2000.893010

Filename

893010