Abstract

Using interferometric couplers and thermal tuning, we demonstrate a novel design of compact microring resonators on silicon-on-insulator platform with tunable bandwidth from $0.1\text{to}0.7\mathrm{nm}$. The structures present an extinction ratio higher than $23\mathrm{dB}$ and a footprint of less than $0.001{\mathrm{mm}}^2$, which are suitable for integrated optical signal processing such as reconfigurable filtering and routing.

© 2007 Optical Society of America

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