Abstract
A tunable ring resonator RR formed from Si/SiO2 waveguides with an electro-optic polymer cladding is proposed with em- phasis on the trade-off between the tuning voltage and ring radius. The ring resonator circuit combines the advantages of Si/SiO2 and polymer technologies. The advantages of this hybrid ring design over previously proposed tunable silicon rings include an increased switching speed, from 5 GHz to 20 to 100 GHz, single-polarity instead of dual-polarity voltage tuning and a voltage-independent quality factor. The hybrid de- sign also displays a greater free spectral range 1.85 nm instead of 0.1 nm and a wider tuning range 0.925 nm instead of 0.05 nm and is further compatible with silicon devices. Moreover, the device has a high quality factor of 3.410 4 . © 2008 Society of Photo-Optical Instrumentation
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