Title :
Optimization of strongly guiding semiconductor rib waveguide Y-junctions
Author :
Rolland, Claude ; Adams, D.M. ; Yevick, David ; Hermansson, Björn
Author_Institution :
Bell Northern Res., Ottawa, Ont., Canada
fDate :
6/1/1990 12:00:00 AM
Abstract :
The three-dimensional split-step fast Fourier transform beam propagation method is used to demonstrate that losses associated with a strongly guiding semiconductor rib waveguide Y-junction can be substantially reduced by adding an optimized length of an initial straight broad waveguide segment. It is shown that the resulting transmission is relatively insensitive to the exact waveguide dimensions and in particular to the geometry of the Y-junction vertex.<>
Keywords :
fast Fourier transforms; integrated optics; light propagation; optical losses; optical waveguide theory; semiconductor device models; 3D split-step FFT beam propagation method; Y-junction vertex; fast Fourier transform beam propagation method; initial straight broad waveguide segment; integrated optics; optimized length; strongly guiding semiconductor rib waveguide Y-junctions; waveguide dimensions; waveguide losses reduction; Fast Fourier transforms; Optical propagation; Optical waveguide theory; Optical waveguides; Planar waveguides; Propagation losses; Refractive index; Semiconductor waveguides; Waveguide discontinuities; Waveguide junctions;
Journal_Title :
Photonics Technology Letters, IEEE
