ABSTRACT
This chapter presents the theory and design fundamentals of integrated waveguide Bragg gratings and we will review recent research developments aimed at achieving complex Bragg grating based devices in silicon photonics. It discusses practical challenges in designing such Bragg gratings and discusses approaches to model and mitigate them. In addition to integrated waveguide Bragg gratings, it presents the contra-directional coupler, a Bragg-grating-based device that consists of two (or more) coupled waveguides that can be used to design multi-port optical add-drop filters.
