Optical modes conversion in magneto-photonic crystal waveguides

We study the propagation of optical radiation in magnetic waveguides with t he periodic domain structures (magneto-photonic crystals). Two types of per iodic structures are studied-one- and two-dimensional (1D and 2D). Optical modes conversion is possessed by both the first- and second-order magneto-o ptic effects and scattering by the domains. In the 2D periodic structures c onversion becomes anisotropic. and strongly depends on the parameters of th e structure. The parameters of the domain structures depend on the external magnetic field, therefore the conversion efficiency can be modulated by th e variation of this field. A numerical analysis is provided of the dispersi on of the interacting modes as well as of the dependence of the intensity o f the converted radiation on the parameters of the domain structure. (C) 20 01 Elsevier Science B.V. All rights reserved.