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Proceedings Paper

New temperature-sensing approach based on temperature shift of effective cutoff wavelength
Author(s): Qin Zhang; Theodore F. Morse; Lawrence J. Reinhart; Arnd Kilian
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Paper Abstract

A new approach for temperature sensing between 20 - 300 degree(s)C using a single mode fiber with a depressed cladding is presented. The effective cutoff wavelength (780 nm) is a linear function of temperature for this fiber because of the mismatch of the thermal expansion coefficients between the core and cladding. Consequently, the attenuation coefficient in the region of the cutoff wavelength is linearly dependent upon temperature. The advantage of this sensor is that the sensing wavelength may be selected between 600 - 780 nm.

Paper Details

Date Published: 5 March 1993
PDF: 7 pages
Proc. SPIE 1797, Distributed and Multiplexed Fiber Optic Sensors II, (5 March 1993); doi: 10.1117/12.141283
Show Author Affiliations
Qin Zhang, Brown Univ. (United States)
Theodore F. Morse, Brown Univ. (United States)
Lawrence J. Reinhart, Brown Univ. (United States)
Arnd Kilian, Brown Univ. (United States)


Published in SPIE Proceedings Vol. 1797:
Distributed and Multiplexed Fiber Optic Sensors II
John P. Dakin; Alan D. Kersey, Editor(s)

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