Electromagnetic Modes of Anisotropic Dielectric Waveguides at p‐n Junctions

摘要: The field distributions and propagation constants of the lowest‐order modes anisotropic dielectric waveguide models, which are relevant to electro‐optic diode modulators, derived. Smoothly varying constant models yield results that essentially identical discontinuous‐dielectric‐constant models. relative intensities two representing polarizations shown vary greatly with position. Models where is asymmetric about junction plane similar for provided asymmetry small. distributions, however, can be markedly affected by even small asymmetries. For larger asymmetries no discrete propagate parameter values typical GaP modulators. Absorption differences inside outside play a minor role in determining mode characteristics, at least diodes. variation voltage various paramete...