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Proceedings Paper

Distributed strain measurement with millimeter-order spatial resolution based on Brillouin optical correlation-domain reflectometry using tellurite glass fiber
Author(s): Yosuke Mizuno; Zuyuan He; Kazuo Hotate
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Paper Abstract

A distributed strain measurement with millimeter-order spatial resolution was demonstrated in optical fibers based on Brillouin optical correlation-domain reflectometry (BOCDR) employing a tellurite glass fiber as the fiber under test. First, the dependences of Brillouin frequency shifts (BFSs) on strain and temperature in the tellurite fiber were investigated, and they showed negative dependences with coefficients of -0.023 MHz/με and -1.14 MHz/K, respectively. Then, using this tellurite fiber, the BFSs around 1-cm strain-applied section were successfully measured based on BOCDR with a nominal spatial resolution of 6 mm.

Paper Details

Date Published: 5 October 2009
PDF: 4 pages
Proc. SPIE 7503, 20th International Conference on Optical Fibre Sensors, 75030D (5 October 2009); doi: 10.1117/12.835047
Show Author Affiliations
Yosuke Mizuno, The Univ. of Tokyo (Japan)
Zuyuan He, The Univ. of Tokyo (Japan)
Kazuo Hotate, The Univ. of Tokyo (Japan)


Published in SPIE Proceedings Vol. 7503:
20th International Conference on Optical Fibre Sensors
Julian D. C. Jones, Editor(s)

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