RF and microwave photonic, fractional differentiation, integration, and Hilbert transforms based on Kerr micro-combs

Mengxi Tan, Xingyuan Xu, Jiayang Wu, Roberto Morandotti, Arnan Mitchell, David J. Moss

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review


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 photonic RF and microwave high bandwidth temporal signal processing based on Kerr micro-combs with comb spacings from 49GHz to 200GHz. 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.

Original languageEnglish
Title of host publicationProceedings of SPIE, Next-Generation Optical Communication
Subtitle of host publicationComponents, Sub-Systems, and Systems X
EditorsGuifang Li, Kazuhide Nakajima
Place of PublicationBellingham WA USA
Number of pages24
ISBN (Electronic)9781510642621
ISBN (Print)9781510642614
Publication statusPublished - 2021
EventNext-Generation Optical Communication: Components, Sub-Systems, and Systems X 2021 - Virtual, Online, United States of America
Duration: 6 Mar 202111 Mar 2021

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
PublisherSociety of Photo-Optical Instrumentation Engineers.
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


ConferenceNext-Generation Optical Communication
Country/TerritoryUnited States of America
CityVirtual, Online
Internet address


  • Kerr combs
  • micro-ring resonators
  • microcombs
  • Microwave photonics
  • signal processing

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