High bandwidth, versatile and highly reconfigurable, RF and microwave photonic Hilbert transformers using Kerr micro-combs

David Moss (1)

1 Swinburne University of Technology (Hawthorn campus)

We experimentally demonstrate bandwidth-tunable RF photonic Hilbert transformer based on an integrated Kerr microcomb source. The micro-comb is generated by an integrated micro-ring resonator with a free spectral range of 48.9 GHz, yielding 75 micro-comb lines in the telecom C-band. By programming and shaping the generated comb lines according to calculated tap weights, we demonstrate high-speed Hilbert transform functions with tunable bandwidths ranging from 1.2 GHz to 15.3 GHz, switchable center frequencies from baseband to 9.5 GHz, and arbitrary fractional orders. The experimental results show good agreement with theory and confirm the effectiveness of our approach.

Mots clés: Kerr frequency comb; Hilbert transform; integrated optics; all-optical signal processing

Domaines: Sciences de l'ingénieur [physics]

David Moss. High bandwidth, versatile and highly reconfigurable, RF and microwave photonic Hilbert transformers using Kerr micro-combs. 2022. ⟨hal-03589858⟩