Optical Dielectric Waveguides

In this chapter, we introduce several analytical and numerical methods used to model the confinement of light in optical dielectric waveguides. We then go on to develop methods for calculating the coupling strength between waveguides and for predicting losses resulting from bending loss. These losses are then considered in the regime of the optical whispering gallery, and we conclude with a treatment of scattering losses resulting from edge roughness in this regime. The ideas presented in this chapter are of fundamental importance to the practical implementation of optical microresonators.