Microwave and RF applications for micro-resonator based frequency combs

Thach G. Nguyen, Mehrdad Shoeiby, Marcello Ferrera, Alessia Pasquazi, Marco Peccianti, Sai T. Chu, Brent E. Little, Roberto Morandotti, Arnan Mitchell, David J. Moss

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Photonic integrated circuits that exploit nonlinear optics in order to generate and process signals all-optically have achieved performance far superior to that possible electronically - particularly with respect to speed. We review the recent achievements based in new CMOS-compatible platforms that are better suited than SOI for nonlinear optics, focusing on radio frequency (RF) and microwave based applications that exploit micro-resonator based frequency combs. We highlight their potential as well as the challenges to achieving practical solutions for many key applications. These material systems have opened up many new capabilities such as on-chip optical frequency comb generation and ultrafast optical pulse generation and measurement. We review recent work on a photonic RF Hilbert transformer for broadband microwave in-phase and quadrature-phase generation based on an integrated frequency optical comb. The comb is generated using a nonlinear microring resonator based on a CMOS compatible, high-index contrast, doped-silica glass platform. The high quality and large frequency spacing of the comb enables filters with up to 20 taps, allowing us to demonstrate a quadrature filter with more than a 5-octave (3 dB) bandwidth and an almost uniform phase response.

Original languageEnglish
Title of host publicationIntegrated Optics
Subtitle of host publicationDevices, Materials, and Technologies XX
EditorsJean-Emmanuel Broquin, Gualtiero Nunzi Conti
ISBN (Print)9781628419856
Publication statusPublished - 1 Mar 2016
EventIntegrated Optics: Devices, Materials, and Technologies XX - San Francisco, United States
Duration: 15 Feb 201617 Feb 2016

Publication series

NameProceedings of SPIE
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


ConferenceIntegrated Optics: Devices, Materials, and Technologies XX
Country/TerritoryUnited States
CitySan Francisco


  • CMOS Silicon photonics
  • Integrated optics
  • Integrated optics materials
  • Integrated optics Nonlinear

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics


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