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arXiv · 2005.02868

Photonic radio frequency and microwave integration based on a multi-wavelength 49GHz Kerr microcomb source

Xingyuan Xu·Mengxi Tan·Jiayang Wu·Andreas Boes·Bill Corcoran·Thach G. Nguyen·Sai T. Chu·Brent E. Little·Roberto Morandotti·Arnan Mitchell·David J. Moss
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Abstract

We demonstrate a photonic RF integrator based on an integrated soliton crystal microcomb 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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Xingyuan Xu, Mengxi Tan, Jiayang Wu, Andreas Boes, Bill Corcoran, Thach G. Nguyen, Sai T. Chu, Brent E. Little, Roberto Morandotti, Arnan Mitchell, David J. Moss. 2020-04-17. Photonic radio frequency and microwave integration based on a multi-wavelength 49GHz Kerr microcomb source. https://doi.org/10.1109/tcsii.2020.2995682

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