Integrated photonic active beamforming can significantly reduce the size and cost of coherent imagers for LiDAR and medical imaging applications. In current architectures, the complexity of photonic and electronic circuitry linearly increases with the desired imaging resolution. We propose a novel photonic transceiver architecture based on co-prime sampling techniques that breaks this trade-off and achieves the full (radiating-element-limited) field of view (FOV) for a 2D aperture with a single-frequency laser. Using only order-of-
Aroutin Khachaturian, Reza Fatemi, Ali Hajimiri. Achieving full grating-lobe-free field of view with low-complexity co-prime photonic beamforming transceivers[J]. Photonics Research, 2022, 10(5): A66