<p>Soliton crystal micro-combs are powerful tools as sources of
multiple wavelength channels for radio frequency (RF) signal processing. They
offer a compact device footprint, large numbers of wavelengths, very high
versatility, and wide Nyquist bandwidths. Here, we demonstrate integral order
RF signal processing functions based on a soliton crystal micro-comb, including
a Hilbert transformer and first- to third-order differentiators. We compare and
contrast results achieved and the tradeoffs involved with varying comb spacing,
tap design methods, as well as shaping methods. </p>
Integral order RF and microwave photonic based signal processors using Kerr soliton crystal micro- combs