Dalzell, Craig J. and Han, Thomas P. J. and Ruddock, Ivan S. (2012) Distributed crystal fiber sensing for extreme environments. IEEE Sensors Journal, 12 (1). pp. 164-167. ISSN 1530-437X
Full text not available in this repository. (Request a copy from the Strathclyde author)Abstract
Distributed sensing of temperature can be achieved by using time-correlated two-photon excited fluorescence (TPF). To assess the extension of this technique to single-crystal fibers for high-temperature applications, various aspects are considered including the two-photon absorption cross-section (delta), dopant density, and the geometry of single crystal fibers. By comparing the fluorescence yield for two-photon excitation with that for single-photon excitation of the same transition, delta for ruby was measured over the 0.8-1.2 mu m range with maximum room temperature values of 5.9 x 10(-3) GM for e-polarization and 4.6 x 10(-3) GM for o-polarization at 840 nm. It is shown that values of this magnitude are adequate for a practical TPF-based crystal fiber sensor to be realized.
| Item type: | Article |
|---|---|
| ID code: | 37144 |
| Keywords: | distributed sensing, doped fiber, fluorescence, optical fiber sensors, ruby, temperature, two-photon excitation, optical fiber, lasers, Solid state physics. Nanoscience |
| Subjects: | Science > Physics > Solid state physics. Nanoscience |
| Department: | Faculty of Science > Physics |
| Related URLs: | |
| Depositing user: | Pure Administrator |
| Date Deposited: | 27 Jan 2012 13:38 |
| Last modified: | 12 Mar 2012 11:45 |
| URI: | http://strathprints.strath.ac.uk/id/eprint/37144 |
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