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Discriminative measurements of strain and temperature distribution are demonstrated based on optical time-domain analysis of Brillouin dynamic grating (BDG) in a polarization-maintaining fiber. The local information of the Brillouin frequency and the BDG frequency are acquired with a 1.2 m spatial resolution, and analyzed together to provide the distribution map of temperature and strain variation with the accuracies of ±1 K and ±20 μs, respectively.
Published in:
OptoeElectronics and Communications Conference (OECC), 2010 15th
Date of Conference: 5-9 July 2010
- Page(s):
- 816 - 817
- Print ISBN:
- 978-1-4244-6785-3
- INSPEC Accession Number:
- 11570128
- Conference Location :
- Sapporo
- Product Type:
- Conference Publications
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