Properties of Nonlinear Transverse-Electric Waves in a Two-Core Optical Waveguide with a Nonlinear Cladding

Expressions of dispersion relation and propagation power are presented for the nonlinear transverse-electric (TE) waves in a two-core optical waveguide with a nonlinear cladding. The properties of the nonlinear TE waves are analyzed. It is found that when the total core thickness and the distance between the two cores are sufficiently large, the power curves of the higher odd modes become very sharp in some narrow ranges of the effective refractive index, compared with those of the higher even modes.