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A photonic microwave and RF integrator based on a transversal filter
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  • David Moss ,
  • xingyuan xu ,
  • mengxi tan ,
  • Jiayang Wu ,
  • Roberto Morandotti ,
  • Arnan Mitchell
David Moss
swinburne university

Corresponding Author:[email protected]

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xingyuan xu
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mengxi tan
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Jiayang Wu
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Roberto Morandotti
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Arnan Mitchell
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We demonstrate a photonic RF integrator based on an integrated soliton crystal micro-comb source. By multicasting and progressively delaying the input RF signal using a transversal structure, the input RF signal is integrated discretely. Up to 81 wavelengths are provided by the microcomb source, which enable a large integration time window of ~6.8 ns, together with a time resolution as fast as ~84 ps. We perform signal integration of a diverse range of input RF signals including Gaussian pulses with varying time widths, dual pulses with varying time intervals and a square waveform. The experimental results show good agreement with theory. These results verify our microcomb-based integrator as a competitive approach for RF signal integration with high performance and potentially lower cost and footprint.