Two-photon excited fluorescence in rare-earth doped optical fiber for applications in distributed sensing of temperature

Craig J. Dalzell, Thomas P. J. Han, Ivan S. Ruddock, David B. Hollis

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Distributed temperature sensing based on time-correlated two-photon excited fluorescence (TPF) in doped optical fiber is described. Counter-propagating laser pulses generate a TPF flash at the position of their overlap which is scanned along the fiber by a variable relative time delay. The flash is transmitted to one end where it is detected and analyzed to yield the temperature from its thermal dependence. To identify suitable dopants, the two-photon excitation spectra of glass doped with various rare-earths were recorded. Preliminary results on TPF in praseodymium doped single-mode fiber are presented.

LanguageEnglish
Pages51-54
Number of pages4
JournalIEEE Sensors Journal
Volume12
Issue number1
DOIs
Publication statusPublished - Jan 2012

Fingerprint

Rare earth-doped fibers
Optical fibers
rare earth elements
Photons
optical fibers
Fluorescence
fluorescence
photons
flash
Praseodymium
Temperature
fibers
temperature
praseodymium
Single mode fibers
Rare earths
Laser pulses
Time delay
counters
time lag

Keywords

  • distributed sensing
  • doped fiber
  • fluorescence
  • optical fiber sensor
  • temperature
  • two-photon excitation
  • STRAIN

Cite this

Dalzell, Craig J. ; Han, Thomas P. J. ; Ruddock, Ivan S. ; Hollis, David B. / Two-photon excited fluorescence in rare-earth doped optical fiber for applications in distributed sensing of temperature. In: IEEE Sensors Journal. 2012 ; Vol. 12, No. 1. pp. 51-54.
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Two-photon excited fluorescence in rare-earth doped optical fiber for applications in distributed sensing of temperature. / Dalzell, Craig J.; Han, Thomas P. J.; Ruddock, Ivan S.; Hollis, David B.

In: IEEE Sensors Journal, Vol. 12, No. 1, 01.2012, p. 51-54.

Research output: Contribution to journalArticle

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