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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 41, Iss. 31 — Nov. 1, 2002
  • pp: 6585–6592

Dual temperature and strain measurement with the combined fluorescence lifetime and Bragg wavelength shift approach in doped optical fiber

David I. Forsyth, Scott A. Wade, Tong Sun, Xiaomei Chen, and Kenneth T. V. Grattan  »View Author Affiliations


Applied Optics, Vol. 41, Issue 31, pp. 6585-6592 (2002)
http://dx.doi.org/10.1364/AO.41.006585


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Abstract

We have constructed fiber-optic sensors to measure temperature and strain by combining the properties of fiber Bragg gratings with the fluorescent lifetimes of various doped fibers. Sensors have been made with the fiber Bragg grating written directly into the doped fiber to ensure the collocation of the strain and temperature measurement points. Results are compared with those obtained previously from a Bragg grating written into standard photosensitive fiber spliced to doped fiber. Standard deviation errors of 7 μ∊ and 0.8 °C have been obtained for strain and temperature ranges of up to 1860 μ∊ and 120 °C, respectively.

© 2002 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(160.5690) Materials : Rare-earth-doped materials

History
Original Manuscript: December 20, 2001
Revised Manuscript: May 31, 2002
Published: November 1, 2002

Citation
David I. Forsyth, Scott A. Wade, Tong Sun, Xiaomei Chen, and Kenneth T. V. Grattan, "Dual temperature and strain measurement with the combined fluorescence lifetime and Bragg wavelength shift approach in doped optical fiber," Appl. Opt. 41, 6585-6592 (2002)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-41-31-6585

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