A planar photonic crystal waveguide based on the semiconductor-on-insulator (SOI) materials system is analyzed theoretically. Two-dimensional (2-D) calculations and comparison with dispersion relations for the media above and below the finite-height waveguide are used to obtain design guidelines. Three-dimensional (3-D) calculations are given for the dispersion relations and field profiles. The field profiles obtained using 2-D and 3-D calculations are qualitatively similar. However, we find that compared with 2-D calculations, the frequencies of the guided modes are shifted and the number of guided modes changes. The theoretically predicted frequency intervals, where the waveguide supports leakage-free guidance of light, are compared with an experimental measurement for propagation losses. Two out of three frequency intervals coincide with low-measured propagation losses. The poor guidance of light for the third frequency interval is explained theoretically by investigating the vertical localization of the guided modes.


PDF Article


  • View by:
  • |

  1. M. Loncar, T. Doll, J. Vuckovic and A. Scherer, "Design and fabrication of silicon photonic crystal optical waveguides", J. Lightwave Technol., vol. 18, pp. 1402-1411, Oct. 2000.
  2. E. Chow, S. Y. Lin, J. R. Wendt, S. G. Johnson and J. D. Joannopoulos, "Quantitative analysis of bending efficiency in photonic-crystal waveguide bends at λ=1.55~mm wavelengths", Opt. Lett., vol. 26, pp. 286-288, 2001.

Cited By

OSA participates in Crossref's Cited-By Linking service. Citing articles from OSA journals and other participating publishers are listed here.