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Proceedings Paper

Measurement of temperature and strain distribution by Brillouin frequency shift in silica optical fibers
Author(s): Tsuneo Horiguchi; Toshio Kurashima; Yahei Koyamada
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Paper Abstract

This paper describes the principles and recent development of a new technique for measuring temperature and strain distribution using Brillouin backscattering rather than Rayleigh and Raman backscattering. The technique is based on temperature- and strain-induced changes in the Brillouin frequency shift. Experimental sensitivities of 1.2 MHz/K and 5.8 MHz/10-4 strain are demonstrated at a wavelength of 1.32 micrometers . Two approaches for measuring the weak Brillouin line are discussed.

Paper Details

Date Published: 5 March 1993
PDF: 12 pages
Proc. SPIE 1797, Distributed and Multiplexed Fiber Optic Sensors II, (5 March 1993); doi: 10.1117/12.141280
Show Author Affiliations
Tsuneo Horiguchi, NTT Telecommunication Field Systems R&D Ctr. (Japan)
Toshio Kurashima, NTT Telecommunication Field Systems R&D Ctr. (Japan)
Yahei Koyamada, NTT Telecommunication Field Systems R&D Ctr. (Japan)


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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