Title :
Bandwidth calculation of high-speed optical modulators
Author :
Haxha, S. ; Rahman, B.M.A.
Author_Institution :
City Univ., London, UK
Abstract :
Simultaneous phase velocity and characteristic impedance matching of high-speed electrooptic modulators is presented by using the finite element method. It is also shown that the dielectric loss in the silica buffer layer is much larger than that in the lithium niobate substrate and when this dielectric loss is included the resulting bandwidth would reduce significantly.
Keywords :
dielectric losses; electro-optical modulation; finite element analysis; impedance matching; optical communication equipment; optical phase matching; 40 GHz; FEM; SiO2-LiNbO3:Ti; characteristic impedance matching; electro optical modulators; finite element methods; high-speed optical modulator bandwidth calculations; lithium niobate substrates; optical communications; phase velocity matching; silica buffer layer dielectric losses; Bandwidth; Dielectric losses; Dielectric substrates; Electrooptic modulators; Finite element methods; High speed optical techniques; Impedance matching; Optical buffering; Optical losses; Optical modulation;
Conference_Titel :
High Frequency Postgraduate Student Colloquium, 2002.7th IEEE
Print_ISBN :
0-7803-7618-8
DOI :
10.1109/HFPSC.2002.1088433
