Live electro-optic imaging of microwave near-fields via ultra-parallel photonic heterodyne

Kiyotaka Sasagawa, Atsushi Kanno, Tetsuya Kawanishi, Masahiro Tsuchiya

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

12 Citations (Scopus)

Abstract

We present the first demonstration of fine Live Electrooptic Imaging (LEI) of electrical signals on a microwave circuit. Patterns of their electric-near-fields are lively depicted on a display screen with a rate as high as 20 frames per second. In this system, a sensing light beam is modulated by an electro-optic (EO) crystal plate with the electric near-fields applied, and its spatial pattern of EO modulation are detected by a two-dimensional photo-detector array, where the frequency of modulation is down-converted by photonic heterodyne of large-scale parallelism. A digital signal processor (DSP) is employed to extract the frequency component of interest and to make it animated on the display screen. As examples, we present motion pictures of electric field pattern data acquired by the system in a real-time manner.

Original languageEnglish
Title of host publication2007 IEEE MTT-S International Microwave Symposium Digest
Pages401-404
Number of pages4
DOIs
Publication statusPublished - 2007 Oct 2
Externally publishedYes
Event2007 IEEE MTT-S International Microwave Symposium, IMS 2007 - Honolulu, HI, United States
Duration: 2007 Jun 32007 Jun 8

Publication series

NameIEEE MTT-S International Microwave Symposium Digest
ISSN (Print)0149-645X

Other

Other2007 IEEE MTT-S International Microwave Symposium, IMS 2007
CountryUnited States
CityHonolulu, HI
Period07/6/307/6/8

Keywords

  • Electro-optic measurement
  • Electromagnetic field imaging
  • Large scale parallelism
  • Photonic heterodyne
  • Real-time imaging

ASJC Scopus subject areas

  • Radiation
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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