Title :
Nonlinear finite-element semivectorial propagation method for three-dimensional optical waveguides
Author :
Cucinotta, A. ; Selleri, S. ; Vincetti, L.
Author_Institution :
Dipt. di Ingegneria dell´´Inf., Parma Univ., Italy
Abstract :
A nonlinear semivectorial beam propagation method based on the finite element method is presented. It applies to three-dimensional optical waveguides and accounts for polarization effects. To show the usefulness of this approach numerical results regarding both E/sup x/ (quasi-TE) and E/sup y/ (quasi-TM) waves are presented for directional couplers with nonlinear cores. The limits of scalar formulations are highlighted especially when working near and above the coupler threshold power.
Keywords :
finite element analysis; light polarisation; optical directional couplers; optical waveguide theory; vectors; 3D optical waveguides; E/sup x/ quasi-TE waves; E/sup y/ quasi-TM waves; coupler threshold power; directional couplers; finite element method; nonlinear cores; nonlinear finite-element semivectorial propagation method; nonlinear semivectorial beam propagation method; polarization effects; scalar formulations; three-dimensional optical waveguides; Directional couplers; Electromagnetic waveguides; Finite element methods; Integrated optics; Magnetic field measurement; Nonlinear optics; Optical polarization; Optical propagation; Optical waveguides; Permittivity;
Journal_Title :
Photonics Technology Letters, IEEE
