Title :
High-density integrated optics
Author :
Manolatou, C. ; Johnson, Steven G. ; Fan, Shanhui ; Villeneuve, Pierre R. ; Haus, H.A. ; Joannopoulos, J.D.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., MIT, Cambridge, MA, USA
fDate :
9/1/1999 12:00:00 AM
Abstract :
This paper presents two dimensional (2-D) finite difference time domain (FDTD) simulations of low-loss right-angle waveguide bends, T-junctions and crossings, based on high index-contrast waveguides. Such structures are essential for the dense integration of optical components. Excellent performance characteristics are obtained by designing the waveguide intersection regions as low-Q resonant cavities with certain symmetries and small radiation loss. A simple analysis, based on coupled mode theory in time, is used to explain the operation principles and agrees qualitatively with the numerical results
Keywords :
finite difference time-domain analysis; integrated optics; optical losses; optical resonators; optical waveguide theory; waveguide discontinuities; 2D finite difference time domain simulations; FDTD simulations; T-junctions; high index-contrast waveguides; high-density integrated optics; low-Q resonant cavities; low-loss right-angle waveguide bends; small radiation loss; waveguide intersection regions; Finite difference methods; Integrated optics; Optical devices; Optical losses; Optical waveguide theory; Optical waveguides; Performance loss; Resonance; Time domain analysis; Two dimensional displays;
Journal_Title :
Lightwave Technology, Journal of
