Title :
Leakage loss in trench-bulge waveguides
Author :
Krause, Michael ; Renner, Hagen ; Harke, Alexander ; Müller, Jörg ; Brinkmeyer, Ernst
Author_Institution :
Tech. Univ. Hamburg-Harburg, Hamburg, Germany
fDate :
5/1/2005 12:00:00 AM
Abstract :
This paper shows that leakage loss is an important loss mechanism in integrated optical trench-bulge waveguides. The propagation losses due to leakage can easily exceed 1 dB/cm in these waveguide geometries. By simply using a deeper trench or a cavity in the substrate to deposit the waveguide in, the leakage losses can be reduced dramatically.
Keywords :
integrated optics; optical design techniques; optical losses; optical waveguide theory; integrated optical waveguides; leakage loss; propagation losses; trench-bulge waveguides; waveguide geometries; Etching; Geometrical optics; Geometry; Integrated optics; Optical losses; Optical scattering; Optical waveguide components; Optical waveguides; Propagation losses; Silicon; Integrated optics; leakage loss; leaky modes; trench-bulge waveguides; waveguide losses;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2005.844492
