Guided-wave optics in silicon-on-insulator technology

Abstract
Silicon-on-insulator (SOI) technology offers tremendous potential for the integration of optoelectronic functions on a silicon substrate. The authors have demonstrated integrated 3 dB optical directional couplers, a 5 × 9 star coupler, and a Mach–Zehnder wavelength demultiplexer using SOI rib waveguides. These devices show excellent performance characteristics and represent key components for the realisation of monolithic optoelectronic circuits in a silicon IC - compatible technology.