Title :
Full-vectorial wave propagation in semiconductor optical bending waveguides and equivalent straight waveguide approximations
Author :
Lui, Wayne W. ; Xu, C.L. ; Hirono, Takuo ; Yokoyama, Kiyoyuki ; Huang, Wei-Ping
Author_Institution :
Optoelectron. Technol. Res. Lab., Kanagawa, Japan
fDate :
5/1/1998 12:00:00 AM
Abstract :
Device characteristics of optical polarization rotators are founded upon the vector properties of the Maxwell equations. Recently, a bending waveguide based polarization rotator has been proposed and demonstrated. To provide a rigorous basis for the analysis and design of this polarization rotator, the full-vectorial wave equations for both E&oarr; and H&oarr;-field in bending waveguides are derived. It is found from these wave equations that under a broad range of circumstances, a bending waveguide can be analyzed using the equivalent straight waveguide approximation. Details of the model for optical polarization rotators, which is based on the coupled-mode theory, will be described in a companion paper
Keywords :
Maxwell equations; approximation theory; bending; coupled mode analysis; light polarisation; optical polarisers; optical rotation; optical waveguide theory; optical waveguides; vectors; Maxwell equations; bending waveguide based polarization rotator; bending waveguides; coupled-mode theory; equivalent straight waveguide approximation; equivalent straight waveguide approximations; full-vectorial wave propagation; optical polarization rotators; polarization rotator design; rigorous basis; semiconductor optical bending waveguides; vector properties; Optical devices; Optical fiber polarization; Optical polarization; Optical propagation; Optical sensors; Optical waveguide theory; Optical waveguides; Partial differential equations; Refractive index; Semiconductor waveguides;
Journal_Title :
Lightwave Technology, Journal of
