Silicon-on-insulator (SOI) is a strong candidate for application in future planar waveguide integration technology, whether or not luminescence is extracted from the silicon. We review recent research on photonic devices based on silicon-on-insulator. These devices exploit either photonic crystal or photonic wire concepts-or combinations of both. Aspects of the technologies used that are particularly critical for successful implementation of SOI-based photonics are addressed.Institute of Physics ⌽ DEUTSCHE PHYSIKALISCHE GESELLSCHAFT Figure 4. Scanning electron micrograph of silicon photonic wire waveguide with top cladding layer of deposited SOI. The superimposed contours indicate the fundamental mode distribution.

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