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Published March 2004 | Published
Journal Article Open

Loss optimization of transverse Bragg resonance waveguides

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.

Additional Information

© 2004 Optical Society of America. The authors acknowledge the generous financial support of the U.S. Air Force Office of Scientific Research, the Defense Advanced Research Projects Agency, and U.S. Office of Naval Research. J. Choi thanks the U.S. Department of Defense and the American Society for Engineering Education for their support.

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August 22, 2023
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