Title :
Determination of bend mode characteristics in dielectric waveguides
Author :
Melloni, Andrea ; Carniel, Federico ; Costa, Raffaella ; Martinelli, Mario
Author_Institution :
CoreCom, Milan, Italy
fDate :
4/1/2001 12:00:00 AM
Abstract :
A new and effective method for the electromagnetic analysis of generic bent dielectric waveguides is presented. The method is based on the expansion of the bend mode in modes of the straight waveguide and permits determination of the shape and the phase constant of the fundamental mode of the bend waveguide with great accuracy at a very low computational cost. Simple analytical expressions of the phase constant, coupling losses, and bending-induced birefringence are derived under very general conditions. The proposed method is useful for the design and optimization of each bent section of integrated optics components
Keywords :
bending; birefringence; integrated optics; optical waveguide theory; optical waveguides; optimisation; waveguide discontinuities; bend mode characteristics; bending-induced birefringence; coupling losses; dielectric waveguides; electromagnetic analysis; fundamental mode; generic bent dielectric waveguides; great accuracy; integrated optics component bent section design; optimization; phase constant; straight waveguide; very low computational cost; Birefringence; Computational efficiency; Design optimization; Dielectrics; Electromagnetic analysis; Electromagnetic waveguides; Optical design; Optical losses; Optical waveguides; Shape;
Journal_Title :
Lightwave Technology, Journal of
