DocumentCode
2395771
Title
A design study of a Ti:LiNbO3 traveling-wave electrooptic modulator by the finite element method
Author
Franco, Marcos A R ; Passaro, Angelo ; Abe, Nancy M. ; Machad, José M. ; Cardoso, José R.
Author_Institution
Div. of Appl. Phys., Centro Tecnico Aeroespacial, Brazil
Volume
1
fYear
1999
fDate
1999
Firstpage
158
Abstract
This work presents the analysis and design of electrooptic modulators by the finite element method. The propagation characteristics of Ex modes (effective index, optical field profiles and spot size) in Ti:LiNbO3 waveguides as a function of manufacturing parameters and the quasi-TEM wave characteristics (effective dielectric constant and characteristic impedance) for the coplanar waveguide are computed and shown. Two x-cut Mach-Zehnder-like modulators are analyzed and compared. The first one presents a conventional electrode configuration and the second one is a modified configuration which includes a set of floating electrodes
Keywords
Mach-Zehnder interferometers; coplanar waveguides; electro-optical modulation; finite element analysis; integrated optics; lithium compounds; permittivity; LiNbO3:Ti; characteristic impedance; coplanar waveguide; effective dielectric constant; effective index; electrode configuration; finite element method; floating electrodes; manufacturing parameters; optical field profiles; propagation characteristics; quasi-TEM wave characteristics; spot size; traveling-wave electrooptic modulator; x-cut Mach-Zehnder-like modulators; Coplanar waveguides; Dielectric constant; Electrodes; Electrooptic modulators; Finite element methods; Impedance; Manufacturing; Optical modulation; Optical propagation; Optical waveguides;
fLanguage
English
Publisher
ieee
Conference_Titel
Microwave and Optoelectronics Conference, 1999. SBMO/IEEE MTT-S, APS and LEOS - IMOC '99. International
Conference_Location
Rio de Janeiro
Print_ISBN
0-7803-5807-4
Type
conf
DOI
10.1109/IMOC.1999.867080
Filename
867080
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