Title :
Full-wave analysis of traveling-wave electrodes with finite thickness for electro-optic modulators by the method of lines
Author :
Gerdes, Johannes ; Helf, Karl Heinz ; Pregla, Reinhold
Author_Institution :
Fern Univ., Hagen, Germany
fDate :
4/1/1991 12:00:00 AM
Abstract :
In order to optimize broadband electrooptic modulators with traveling-wave electrodes, detailed information about the propagation constant, the field distribution, and the wave impedance of the modulating field is needed. To get accurate results for these characteristic values, the numerically efficient method of lines (MoL) is used. The MoL takes advantage of the planar structure by discretizing the wave equation in the directions parallel to the metallization plane, whereas an analytical formulation is retained for the transverse direction. Thus, not only the hybrid character of the modulating field but also the finite conductor thickness and anisotropy of the substrate are taken into account. Results for asymmetric coplanar stripline electrodes with typical dimensions on SiO2 buffered LiNbO3 are presented
Keywords :
electro-optical devices; electrodes; integrated optics; optical modulation; optical waveguide theory; LiNbO3; SiO2 buffered; asymmetric coplanar stripline electrodes; broadband electrooptic modulators; electro-optic modulators; field distribution; finite conductor thickness; metallization plane; method of lines; planar structure; propagation constant; substrate anisotropy; transverse direction; traveling-wave electrodes; wave impedance; Anisotropic magnetoresistance; Electrodes; Electrooptic modulators; Magnetic analysis; Magnetic anisotropy; Maxwell equations; Metallization; Partial differential equations; Perpendicular magnetic anisotropy; Stripline;
Journal_Title :
Lightwave Technology, Journal of
