Broadband Microwave Frequency Conversion Based on an Integrated Optical Micro-Comb Source

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

7 Scopus Citations
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Author(s)

  • Xingyuan Xu
  • Jiayang Wu
  • Mengxi Tan
  • Thach G. Nguyen
  • Brent E. Little
  • Roberto Morandotti
  • Arnan Mitchell
  • David J. Moss

Detail(s)

Original languageEnglish
Article number8769870
Pages (from-to)332-338
Journal / PublicationJournal of Lightwave Technology
Volume38
Issue number2
Online published23 Jul 2019
Publication statusPublished - 15 Jan 2020

Abstract

We report a broadband microwave frequency converter based on a coherent Kerr optical micro-comb generated by an integrated micro-ring resonator. The coherent micro-comb displays features that are consistent with soliton crystal dynamics with a free spectral range of 48.9 GHz. We use this to demonstrate a high-performance millimeter-wave local oscillator for microwave frequency conversion. We experimentally verify the microwave performance up to 40 GHz, achieving a ratio of-6.8 dB between output radio frequency power and intermediate frequency power and a spurious suppression ratio of >43.5 dB. The experimental results show good agreement with theory and verify the effectiveness of microwave frequency converters based on coherent optical micro-combs, with the ability to achieve reduced size, complexity, and potential cost.

Research Area(s)

  • Kerr optical comb, microwave frequency converters, microwave photonics

Citation Format(s)

Broadband Microwave Frequency Conversion Based on an Integrated Optical Micro-Comb Source. / Xu, Xingyuan; Wu, Jiayang; Tan, Mengxi; Nguyen, Thach G.; Chu, Sai T.; Little, Brent E.; Morandotti, Roberto; Mitchell, Arnan; Moss, David J.

In: Journal of Lightwave Technology, Vol. 38, No. 2, 8769870, 15.01.2020, p. 332-338.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal