Title :
One-Dimensional Photonic Crystal Rib Waveguides
Author :
Goeckeritz, Jeremy ; Blair, Steve
Author_Institution :
Utah Univ., Salt Lake City
Abstract :
We analyze an optical waveguide that consists of a 1D photonic crystal (PC) embedded in a large cross-sectional rib waveguide. The PC provides control over the dispersion properties of the waveguide, while the rib geometry provides a low loss and versatile mechanism for confining light. The structure is analyzed using the 3D finite-difference time-domain method. The simulation results indicate that extremely low-loss waveguiding is possible over a defect band. Moreover, the PC has a complete 1D photonic band gap with a gap-midgap ratio (Deltaomega/omegamid) of 0.913, which is one of the largest ratios ever reported for a PC.
Keywords :
finite difference time-domain analysis; optical dispersion; optical waveguides; photonic band gap; photonic crystals; rib waveguides; 1D photonic band gap; 1D photonic crystal rib waveguides; 3D finite-difference time-domain method; low-loss waveguiding; optical waveguide; Finite difference methods; Integrated optics; Optical filters; Optical refraction; Optical scattering; Optical variables control; Optical waveguides; Personal communication networks; Photonic crystals; Time domain analysis; Finite-difference time domain (FDTD); integrated optics; optical losses; optical waveguides; photonic crystals (PCs);
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2007.902740
