Integral order photonic RF signal processors based on a soliton crystal micro-comb source

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, a large number 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, second and third-order differentiators. We compare and contrast the results and the trade-offs involved with varying the comb spacing, and tap design and shaping methods.

Automated summary

Soliton crystal micro-combs are powerful tools for RF signal processing with multiple wavelength channels, offering compact size, multiple wavelengths, high versatility, and wide Nyquist bandwidths. This study demonstrates RF signal processing functions using a soliton crystal micro-comb and compares the results and trade-offs of different comb spacings, tap designs, and shaping methods.