Bragg Grating Waveguides: Extending Bragg Technology into Three Dimensions
Conventional optical waveguides are transparent structures, providing a refractive index contrast that guides optical fields via total internal reflection. Optical fiber is the best-known example, delivering light signals around the world while imposing losses of only a few tenths of a decibel per kilometer. Today, intense research is focused on building integrated photonic devices in which optical waveguides serve the vital function of connecting lasers, detectors, power splitters, filters and...
Photonics Spectra, January 2008