Photomixer with superconductor detector for sub-THz generator

Toshihiko Kiwa, Masayoshi Tonouchi

Research output: Contribution to journalConference articlepeer-review


A new type of optical-microwave conversion system has been proposed as high-stabilized oscillators and optical interfaces for superconducing circuits. The photomixer with heterodyne mixing of two lasers was applied to generate the electromagnetic waves and high-TC grain boundary Josephson junction detector was used to monitor the frequency of electromagnetic waves in real time. The current-voltage properties of Josephson junction detector were examined and the system operation up to 50 GHz was demonstrated. We also described in detail the two types of optical-microwave conversion system.

Original languageEnglish
Pages (from-to)121-128
Number of pages8
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - Jul 6 2004
Externally publishedYes
EventTerahertz and Gigahertz Electronics and Photonics III - San Jose, CA, United States
Duration: Jan 25 2004Jan 26 2004


  • High-T superconductor
  • Josephson junction
  • Photomixer
  • Photomixing

ASJC Scopus subject areas

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


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