Title :
The application of complex Pade approximants to reflection at optical waveguide facets
Author :
El-Refaei, Hatem ; Betty, Ian ; Yevick, David
Author_Institution :
Dept. of Electr. & Comput. Eng., Queen´´s Univ., Kingston, Ont., Canada
Abstract :
We demonstrate that the numerical instabilities associated with the use of the standard real Pade approximation for the reflection operator can be avoided through either a complex Pade expression or a branch-cut rotation in the complex plane.
Keywords :
integrated optics; light reflection; numerical stability; optical waveguide theory; refractive index; branch-cut rotation; complex Pade approximants; complex Pade expression; complex plane; numerical instabilities; optical waveguide facets; reflection; reflection operator; standard real Pade approximation; Electromagnetic waveguides; Integrated optics; Optical devices; Optical reflection; Optical refraction; Optical surface waves; Optical variables control; Optical waveguides; Tellurium; Waveguide junctions;
Journal_Title :
Photonics Technology Letters, IEEE
