Properties and novel fabrication methods of opto-electronic waveguides

摘要

There are numerous materials and techniques for the fabrication of optical waveguides and opto-electronic circuits, however all structures require knowledge of the guiding properties for the realization of practical devices. We have studied in detail the guiding properties of the planar thin film waveguide, from the most basic, three-layer structure to multilayer waveguides. In sections II and III we describe general formulas for the field distributions, the eigenvalue equations from which the propagation constant can be found, and the generalized dispersion properties, which tell us the variation in effective index with respect to any physical parameter upon which the refractive index or thickness of any layer may depend.