Title :
Finite-element formalism for nonlinear slab-guided waves
Author :
Hayata, Kousei ; Nagai, Michio ; Koshiba, Masanori
Author_Institution :
Dept. of Electron Eng., Hokkaido Univ., Sapporo, Japan
fDate :
7/1/1988 12:00:00 AM
Abstract :
A unified computer-aided numerical approach, based on the finite-element method, is developed for analyzing optical waves guided by dielectric slab waveguiding structures with arbitrary nonlinear media. In the formulations, both TE and TM polarizations are considered. For the TM case, the biaxial nature of nonlinear refractive index is considered without any approximation. Numerical results are presented for nonlinear TE and TM waves propagating in symmetric slab waveguides. The dependence of dispersion relations on the refractive-index profile of the film is examined
Keywords :
finite element analysis; nonlinear optics; optical waveguide theory; TE polarizations; TM polarizations; arbitrary nonlinear media; biaxial nature of nonlinear refractive index; dielectric slab waveguiding structures; dispersion relations; finite-element method; nonlinear slab-guided waves; numerical results; optical waves; refractive-index profile; symmetric slab waveguides; unified computer-aided numerical approach; Dielectrics; Finite element methods; Nonlinear optics; Optical computing; Optical films; Optical polarization; Optical refraction; Optical variables control; Slabs; Tellurium;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on