RF and microwave photonic temporal signal processing with Kerr micro-combs

Integrated Kerr micro-combs are a powerful source of multiple wavelength channels for photonic radio frequency (RF) and microwave signal processing, particularly for transversal filter systems. They offer significant advantages featuring a compact device footprint, high versatility, large numbers of...

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Published inAdvances in physics: X Vol. 6; no. 1
Main Authors Tan, Mengxi, Xu, Xingyuan, Wu, Jiayang, Morandotti, Roberto, Mitchell, Arnan, Moss, David J.
Format Journal Article
LanguageEnglish
Published Abingdon Taylor & Francis 01.01.2021
Taylor & Francis Ltd
Taylor & Francis Group
Subjects
Integrators
micro-ring resonators
Microwave photonics
Radio frequency
Signal processing
Transversal filters
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Summary:Integrated Kerr micro-combs are a powerful source of multiple wavelength channels for photonic radio frequency (RF) and microwave signal processing, particularly for transversal filter systems. They offer significant advantages featuring a compact device footprint, high versatility, large numbers of wavelengths, and wide Nyquist bands. We review progress on photonic RF and microwave high bandwidth temporal signal processing based on Kerr micro-combs with comb spacings from 49 GHz to 200 GHz. We focus on integral and fractional Hilbert transforms, differentiators as well as integrators. The future potential of optical micro-combs for RF photonic applications in terms of functionality and ability to realize integrated solutions is also discussed.
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ISSN:2374-6149
2374-6149
DOI:10.1080/23746149.2020.1838946