Title :
Numerical analysis of all-optical switching based on a 2-D nonlinear photonic crystal directional coupler
Author :
Cuesta-Soto, F. ; Martinez, A. ; Garcia-Banos, B. ; Marti, J.
Author_Institution :
Valencia Nanophotonics Technol. Center, Univ. Politecnica de Valencia, Spain
Abstract :
A photonic crystal (PhC) all-optical switch based on a nonlinear directional coupler is presented and discussed. The coupling strength of the structure may be tuned by a high optical power control signal that propagates along the coupling region. Thus, the power ratio between the output ports of the device can be tuned and, hence, switching is accomplished. The study of the present structure is performed with a numerical tool based on the finite-element method. This tool allows to calculate the nonlinear band diagram of a two-dimensional PhC. The implementation and characteristics of this method are thoroughly addressed.
Keywords :
finite element analysis; optical directional couplers; optical switches; photonic band gap; photonic crystals; 2-D nonlinear photonic crystal directional coupler; all-optical switching; band diagram; finite-element method; Directional couplers; Nonlinear optical devices; Nonlinear optics; Numerical analysis; Optical control; Optical coupling; Optical propagation; Optical switches; Photonic crystals; Power control; Finite-element method (FEM); nonlinear; photonic crystals (PhCs); switching;
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/JSTQE.2004.837219
