Optical microcombs represent a new paradigm for generating laser frequency combs based
on compact chip-scale devices, which have underpinned many modern technological …

Metasurfaces have recently risen to prominence in optical research, providing unique
functionalities that can be used for imaging, beam forming, holography, polarimetry, and …

As a fundamental optical approach to interferometry, Sagnac interference has been widely
used for reflection manipulation, precision measurements, and spectral engineering in …

Integrated microwave photonics (MWP) is an intriguing technology for the generation,
transmission and manipulation of microwave signals in chip-scale optical systems,. In …

Photonic RF transversal signal processors, which are equivalent to reconfigurable electrical
digital signal processors but implemented with photonic technologies, are attractive for high …

There is an ever-growing demand for artificial intelligence. Optical processors, which
compute with photons instead of electrons, can fundamentally accelerate the development …

Optical artificial neural networks (ONNs)—analog computing hardware tailored for machine
learning—have significant potential for achieving ultra‐high computing speed and energy …

We report a broadband radio frequency (RF) channelizer with up to 92 channels using a
coherent microcomb source. A soliton crystal microcomb, generated by a 49 GHz micro-ring …

We demonstrate a photonic RF integrator based on an integrated soliton crystal micro-comb
source. By multicasting and progressively delaying the input RF signal using a transversal …

We review recent work on broadband RF channelizers based on integrated optical
frequency Kerr micro-combs combined with passive micro-ring resonator filters, with …