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Reconfigurable microwave photonic transversal filter based on an integrated optical micro-comb source

  • Xingyuan Xu
  • , Jiayang Wu
  • , Mengxi Tan
  • , Thach G. Nguyen
  • , Sai T. Chu
  • , Brent E. Little
  • , Roberto Morandotti
  • , Arnan Mitchell
  • , David J. Moss*
  • *Corresponding author for this work

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

Abstract

We demonstrate an 80-tap radio frequency (RF) transversal filter based on a 49GHz-spacing integrated micro-comb source. By employing a record 80 micro-comb lines, or taps, for the transversal filter, we achieve very high performance including a QRF factor more than four times higher than previous results. Our experimental results match well with theory, showing that our transversal filter is a competitive solution to implement advanced adaptive RF filters with high frequency selectivity and reconfigurability, and with potentially lower cost and footprint. This approach is promising for applications in modern radar and satellite communications systems.

Original languageEnglish
Title of host publicationIntegrated Optics
Subtitle of host publicationDevices, Materials, and Technologies XXIII
EditorsPavel Cheben, Sonia M. Garcia-Blanco
PublisherSPIE
ISBN (Electronic)9781510624849
DOIs
StatePublished - 2019
Externally publishedYes
EventIntegrated Optics: Devices, Materials, and Technologies XXIII 2019 - San Francisco, United States
Duration: 4 Feb 20197 Feb 2019

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10921
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceIntegrated Optics: Devices, Materials, and Technologies XXIII 2019
Country/TerritoryUnited States
CitySan Francisco
Period4/02/197/02/19

Keywords

  • Micro-ring resonator
  • Optical frequency combs
  • Optical signal processing.

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