Abstract
Three-wave parametric interactions and especially second harmonic generation (SHG) in dielectric waveguide structures play a significant part in nonlinear integrated optics. They have been discussed extensively in theory, but none of the available considerations takes into account all the complex various factors. Andrews1 has considered the effects of thin-film crystal symmetry and orientation on the mode interaction without regard for the electric-field distribution, its frequency, and mode-order dependence. Theoretical analyses of SHG in planar optical waveguides have been given by Conwell2 and So et al.3 For the purpose of simplification they left aside the anisotropy of dielectric constants, symmetry, and orientation of crystalline film.
© 1986 Optical Society of America
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