摘要: 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.