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We report improvements in fabrication precision obtained in coupled ring-resonator slow-wave structures on an SOI platform. Optical delay lines were formed by using a cascade of coupled resonant cavities to slow the propagation of light through the combined effects of resonance and increased optical path length. Mismatch between the resonance frequencies of individual rings has the additional effect...
All-optical switching with a very low power is demonstrated on photonic crystal wire nanocavities on silicon-on-insulator with large quality factors and high transmission in the telecom range.
Summary form only given: We present photonic wire device structures based on silicon on insulator (SOI) - in particular tapered Bragg gratings. Different types of taper specification have been introduced to enable efficient coupling of light into the grating region. The structure has been simulated using the 2D FDTD method in the Fullwave software from Rsoftreg- and shows substantial improvement in...
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