Frequency agile microwave photonics notch filter based on a waveguide Bragg grating on silicon

Abstract

We propose and experimentally demonstrate a broadband, frequency agile RF-photonic notch filter based on a waveguide Bragg grating on silicon, realized with CMOS compatible process via a multi-project wafer (MPW) run. The resulting RF filter shows a seamless tuning over 20 GHz of the central RF frequency of the notch, without changes in the shape of the filter response.