Switched photonic delay line for phased array antenna control using externally modulated microwave fiber-optic link

Research output: Contribution to journalArticlepeer-review

Abstract

The first demonstration of a 4-bit binary photonic delay line using ferroelectric liquid crystal (FLC) devices and externally modulated s/c band fiber-optic link is presented. A Mach-Zehnder integrated-optic modulator is used to modulate the light. This photonic delay line uses FLC optical on/off devices for optical path switching and active polarization noise filtering. Three dimensional imaging optics and antireflection coated optics are used to minimize photonic delay line insertion losses and interchannel crosstalk. Signal-tonoise ratio measurements as well as interchannel isolation crosstalk analysis is performed.

Original languageEnglish
Pages (from-to)45-54
Number of pages10
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume3160
DOIs
Publication statusPublished - 23 Oct 1997
Externally publishedYes
EventOptical Technology for Microwave Applications VIII 1997 - San Diego, United States
Duration: 27 Jul 19971 Aug 1997

Keywords

  • External modulation fiber-optic link.
  • Ferroelectric liquid crystals
  • Phased array antennas
  • Photonic beam-forming
  • Photonic delay lines
  • Polarization switching

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