Abstract

A comparison of the single-mode condition for semiconductor rib waveguides with large cross section obtained by the effective index method and the corrected formula proposed by Soref et al. [8] with experimental data is carried out. It is found that the effective index method is in a better agreement with Rickman's [11] experimental data than the modified version. Moreover a stronger condition is proposed for single-mode design purposes.

[IEEE ]

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  1. A. G. Rickman, G. T. Reed, and F. Namavar, "Silicon-on-insulator optical RIB waveguide loss and mode characteristics," J. Lightwave Technol., vol. 12, pp. 1771-1776, Oct. 1994.
  2. B. Sch ppert, J. Schmidtchen, A. Splett, U. Fischer, T. Zinke, R. Moosburger, and K. Petermann, "Integrated optics in Si and SiGe heterostructures," J. Lightwave Technol., vol. 14, pp. 2311-2323, Oct. 1996.

J. Lightwave Technol.

A. G. Rickman, G. T. Reed, and F. Namavar, "Silicon-on-insulator optical RIB waveguide loss and mode characteristics," J. Lightwave Technol., vol. 12, pp. 1771-1776, Oct. 1994.

B. Sch ppert, J. Schmidtchen, A. Splett, U. Fischer, T. Zinke, R. Moosburger, and K. Petermann, "Integrated optics in Si and SiGe heterostructures," J. Lightwave Technol., vol. 14, pp. 2311-2323, Oct. 1996.

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