Photonic Microwave Frequency Measurement With High-Coding-Efficiency Digital Outputs and Large Measurement Range

A photonic approach to estimating microwave frequency with high-coding-efficiency digital outputs and large measurement range is proposed and experimentally demonstrated. In the proposed approach, an optical filter array that consists of N filters is designed, wherein N - 1 optical phase-shifted filters have an identical free spectral range (FSR) but a… (More)