RF and microwave photonic high bandwidth signal processing based on Kerr
micro - comb sources
Abstract
Integrated Kerr micro-combs are a powerful source for generating
multiple wavelength channels to achieve photonic radio frequency (RF)
and microwave signal processing, particularly in the context of
transversal filters. They offer competitive advantages including a
compact device footprint, high versatility, large numbers of
wavelengths, and wide Nyquist bands. Here, we review recent progress on
Kerr micro-comb-based photonic RF and microwave high bandwidth temporal
signal processing, including integral and fractional Hilbert transforms,
differentiators as well as integrators. The strong potential of optical
micro-combs for RF photonic applications in terms of functions and
integrability is also discussed.