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A photonic microwave and RF integrator based on a transversal filter

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posted on 2020-02-29, 00:15 authored by David MossDavid Moss, xingyuan xu, mengxi tanmengxi tan, Jiayang Wu, Roberto Morandotti, Arnan Mitchell

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.


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swinburne university

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  • Australia

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