Ultracompact microwave photonic signal processing using silicon nanophotonic devices

We review our recent progress in ultracompact microwave photonic signal processing using silicon nanophotonic devices. Using the fabricated silicon waveguides, silicon microring resonators, and silicon photonic crystal nanocavities, we demonstrate on-chip analog signal transmission, bandstop microwave photonic filter, bandpass microwave photonic filter, optically-controlled tunable microwave photonic filter, and ultra-high peak rejection notch microwave photonic filter. The performance of analog links and the linear and nonlinear responses of microwave photonic filters are evaluated in the experiment.