Athermal distributed Brillouin sensors utilizing all-glass optical fibers fabricated from rare earth garnets: LuAG

Peter D Dragic, M. G. Pamato, V. Iordache, Jay D Bass, C. J. Kucera, M. Jones, T. W. Hawkins, J. Ballato

Research output: Contribution to journalArticle

Abstract

An all-glass optical fiber derived from single-crystal LuAG is investigated for its potential use in athermal Brillouin distributed strain sensors. Such sensor systems are comprised of fiber whose Brillouin frequency shift is independent of temperature, but not independent of strain. Bulk Brillouin spectroscopy measurements on the precursor LuAG crystal are performed to gain insight into the crystal-to-glass transition. Results suggest that both the mass density and acoustic velocity are reduced relative to the crystal phase, in common with the other rare earth aluminosilicates. Advantages of the LuAG derived fiber over other rare earth garnet-derived fibers for the sensing application are a stronger strain response and larger Brilloun gain with narrower Brillouin spectral width.

Original languageEnglish (US)
Article number015004
JournalNew Journal of Physics
Volume18
Issue number1
DOIs
StatePublished - Jan 1 2016

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glass fibers
garnets
rare earth elements
optical fibers
fibers
sensors
crystals
acoustic velocity
frequency shift
glass
single crystals
spectroscopy
temperature

Keywords

  • Brillouin scattering
  • crystal-derived fiber
  • distributed sensing
  • optical fiber

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Athermal distributed Brillouin sensors utilizing all-glass optical fibers fabricated from rare earth garnets : LuAG. / Dragic, Peter D; Pamato, M. G.; Iordache, V.; Bass, Jay D; Kucera, C. J.; Jones, M.; Hawkins, T. W.; Ballato, J.

In: New Journal of Physics, Vol. 18, No. 1, 015004, 01.01.2016.

Research output: Contribution to journalArticle

Dragic, Peter D ; Pamato, M. G. ; Iordache, V. ; Bass, Jay D ; Kucera, C. J. ; Jones, M. ; Hawkins, T. W. ; Ballato, J. / Athermal distributed Brillouin sensors utilizing all-glass optical fibers fabricated from rare earth garnets : LuAG. In: New Journal of Physics. 2016 ; Vol. 18, No. 1.
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