Abstract
Coupled-mode theory was used to analyze guiding in a transverse Bragg resonance (TBR) waveguide structure composed of a GaAs substrate with air holes. This analysis predicts that propagation loss will be minimized for discrete widths of the waveguide core. Although the coupled-mode theory is normally applied to structures with small index perturbations, two-dimensional finite-difference time-domain simulations of the TBR waveguide show good quantitative agreement with the coupled-mode predictions, and these results corroborate the previously predicted existence of discrete core widths for low-loss propagation.
© 2004 Optical Society of America
Full Article | PDF ArticleMore Like This
Wei Liang, Yong Xu, John M. Choi, and Amnon Yariv
Opt. Lett. 28(21) 2079-2081 (2003)
Wan Kuang and John D. O’Brien
Opt. Lett. 29(8) 860-862 (2004)
Jeremy Witzens, Thomas Baehr-Jones, Michael Hochberg, Marko Lončar, and Axel Scherer
J. Opt. Soc. Am. A 20(10) 1963-1968 (2003)