Electromagnetic source azimuth measurement using electrooptical electromagnetic field probe

Tsung Hsin Lee, Wen Tron Shay, Ching Ting Lee

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


A new type electrooptical electromagnetic field probe was fabricated by combining three magnetic field sensors, each of which consists of a Mach-Zehnder modulator and an integrated annular antenna. The frequency response was flat from 50 MHz to 2.2 GHz. The average minimum detectable electromagnetic field intensity of the sensor is 2.22 mV/m. When the probe axis was pointed toward the electromagnetic radiation source, the highest sensitivity was obtained. The variation of the sensitivity is within ±.5 dB with rotating the probe around its axis. This result indicates that the azimuth of the electromagnetic radiation source can be measured.

Original languageEnglish
Pages (from-to)1163-1165
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number17
Publication statusPublished - 2009 Sep 1

All Science Journal Classification (ASJC) codes

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

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