Note: reducing polarization induced sidebands in Rayleigh backscattering spectra for accurate distributed strain measurement using optical frequency-domain reflectometry

We describe a phenomenon called polarization-induced sidebands (PIS) in Rayleigh backscatter spectra (RBS) and discuss its deteriorating effects on the distributed strain measurement using an optical frequency-domain reflectometry. We propose using a special polarization diversity detection scheme t...

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Bibliographic Details
Published in:Review of scientific instruments 2013-02, Vol.84 (2), p.026101-026101
Main Authors: Ding, Zhenyang, Yao, X Steve, Liu, Tiegen, Du, Yang, Liu, Kun, Han, Qun, Meng, Zhuo, Li, Dingjie
Format: Article
Language:English
Subjects:
Backscattering
Deterioration
Optical frequency
Polarization
Reflectometry
Sidebands
Spectra
Strain measurement
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Summary:We describe a phenomenon called polarization-induced sidebands (PIS) in Rayleigh backscatter spectra (RBS) and discuss its deteriorating effects on the distributed strain measurement using an optical frequency-domain reflectometry. We propose using a special polarization diversity detection scheme to remove PIS and successfully demonstrate accurate distributed strain measurement in the range of 0.75 με-225 με in a 50 m standard single mode fiber, with a good linearity between the strain and the spectra shift in RBS.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.4790472