Picture of neon light reading 'Open'

Discover open research at Strathprints as part of International Open Access Week!

23-29 October 2017 is International Open Access Week. The Strathprints institutional repository is a digital archive of Open Access research outputs, all produced by University of Strathclyde researchers.

Explore recent world leading Open Access research content this Open Access Week from across Strathclyde's many research active faculties: Engineering, Science, Humanities, Arts & Social Sciences and Strathclyde Business School.

Explore all Strathclyde Open Access research outputs...

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

Dalzell, Craig J. and Han, Thomas P. J. and Ruddock, Ivan S. and Hollis, David B. (2012) Two-photon excited fluorescence in rare-earth doped optical fiber for applications in distributed sensing of temperature. IEEE Sensors Journal, 12 (1). pp. 51-54. ISSN 1530-437X

Full text not available in this repository. Request a copy from the Strathclyde author

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.