Title :
General finite-element modeling of 2-D magnetophotonic crystal waveguides
Author :
Kono, Naoya ; Koshiba, Masanori
Author_Institution :
Graduate Sch. of Inf. Sci. & Technol., Hokkaido Univ., Sapporo, Japan
fDate :
7/1/2005 12:00:00 AM
Abstract :
A new finite-element method for characterizing magnetophotonic crystal (MPC) waveguides with polarization conversion properties is proposed. To treat arbitrarily anisotropic magnetophotonic materials, a vector Helmholtz equation in terms of three components of electric or magnetic fields is discretized with the so-called edge/nodal hybrid elements. Nonreciprocal lightwave propagation properties are obtained by using an asymmetrical input condition. This method is validated by simulation of an optical isolator based on an MPC waveguide with a compensation wall exhibiting inclined magnetization.
Keywords :
Helmholtz equations; anisotropic media; compensation; finite element analysis; light polarisation; light propagation; magnetisation; magneto-optical effects; optical isolators; optical waveguide theory; photonic crystals; vectors; 2-D waveguides; anisotropic materials; asymmetrical input condition; compensation wall; edge-nodal hybrid elements; electric field components; finite-element modeling; inclined magnetization; magnetic field components; magnetophotonic crystal waveguides; nonreciprocal lightwave propagation; optical isolator; polarization conversion; vector Helmholtz equation; Anisotropic magnetoresistance; Crystalline materials; Finite element methods; Magnetic anisotropy; Magnetic materials; Magnetic properties; Optical polarization; Optical waveguides; Perpendicular magnetic anisotropy; Photonic crystals; Finite-element method (FEM); magnetooptic effect; nonreciprocal device; optical isolator; photonic crystal (PC);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2005.848286
