Brillouin optical correlation-domain reflectometry with 13-mm spatial resolution and 50-Hz sampling rate

Author

Mizuno, Yosuke ; He, Zuyuan ; Hotate, Kazuo

Author_Institution

Dept. of Electron. Eng., Univ. of Tokyo, Tokyo

fYear

2008

fDate

4-9 May 2008

Firstpage

1

Lastpage

2

Abstract

Distributed strain sensing with a high spatial resolution is demonstrated in optical fibers based on Brillouin optical correlation-domain reflectometry. The Brillouin frequency shifts of 3-cm fiber sections are successfully measured with a spatial resolution of 13 mm and sampling rate of 50 Hz. This spatial resolution is the best result ever reported in Brillouin-based reflectometry.

Keywords

Brillouin spectra; distributed sensors; fibre optic sensors; optical correlation; optical fibre testing; optical time-domain reflectometry; strain measurement; strain sensors; Brillouin frequency shifts; Brillouin optical correlation-domain reflectometry; distributed strain sensing mechanism; optical fibers; sampling rate; size 3 cm; spatial resolution; spontaneous Brillouin scattering; Brillouin scattering; Frequency modulation; High speed optical techniques; Optical fiber testing; Optical scattering; Optical sensors; Reflectometry; Sampling methods; Spatial resolution; Strain measurement; (060.2370) Fiber optics sensors; (280.4788) Optical sensing and sensors; (290.5830) Scattering, Brillouin;

fLanguage

English

Publisher

iet

Conference_Titel

Lasers and Electro-Optics, 2008 and 2008 Conference on Quantum Electronics and Laser Science. CLEO/QELS 2008. Conference on

Conference_Location

San Jose, CA

Print_ISBN

978-1-55752-859-9

Type

conf

Filename

4571572