Undersampling a photonic analog-to-digital converter containing an optical hybrid combiner

Daniel R. Reilly, Shawn X. Wang, Gregory S. Kanter*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


A self-coherent optically-sampled analog-to-digital converter using a 90° optical hybrid coupler is experimentally demonstrated. It leverages practical, commercially available components and is used for high-resolution undersampling at 50 Msps of up to 20 GHz carrier frequencies. The measured ADC resolution is 9 effective bits for a 10 GHz carrier frequency and shows little carrier frequency dependence from 6 to 20 GHz.

Original languageEnglish (US)
Pages (from-to)31-37
Number of pages7
JournalOptics Communications
StatePublished - Feb 1 2013


  • Analog-digital conversion
  • Microwave photonics
  • Optical data processing

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering


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