TE WAVES IN CIRCULAR NONLINEAR-OPTICAL ANTIWAVEGUIDE

Eigenvalues and eigenfunctions of TE(01) modes in a two-layer circular nonlinear optical waveguide are numerically investigated for various refractive index differences between the core and cladding and various values of the core radius. It is shown that for a negative difference between the refractive indices of the core and the cladding, there ar e possible regions which may be interpreted as stability regions for T E modes, In these regions the core diameter is small (of the order of light wavelength) and the longitudinal magnetic field is comparable wi th the transverse one.