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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 37, Iss. 19 — Oct. 1, 2012
  • pp: 3936–3938

Distributed birefringence measurement with beat period detection of homodyne Brillouin optical time-domain reflectometry

Yuangang Lu, Xiaoyi Bao, Liang Chen, Shangran Xie, and Meng Pang  »View Author Affiliations


Optics Letters, Vol. 37, Issue 19, pp. 3936-3938 (2012)
http://dx.doi.org/10.1364/OL.37.003936


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Abstract

We report a distributed optical fiber birefringence measurement method based on homodyne Brillouin optical time-domain reflectometry (BOTDR). Unlike conventional BOTDR, which requires scanning of the local oscillator to get the Brillouin spectrum, instead we propose the beat period measurement of fast and slow components of the backscattered Brillouin signal in single-mode fibers using homodyne detection. The beat period is measured by detecting the envelope of the Brillouin beat signal, which gives the beat length at different fiber locations, so that birefringence can be calculated accordingly. The distributed birefringence of a 1.7 km SMF-28 and a 4.3 km large-effective-area fiber were measured with 0.6 m spatial resolution without frequency scanning of the Brillouin spectrum.

© 2012 Optical Society of America

OCIS Codes
(060.2270) Fiber optics and optical communications : Fiber characterization
(060.2300) Fiber optics and optical communications : Fiber measurements
(190.4370) Nonlinear optics : Nonlinear optics, fibers

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: June 25, 2012
Revised Manuscript: August 8, 2012
Manuscript Accepted: August 9, 2012
Published: September 17, 2012

Citation
Yuangang Lu, Xiaoyi Bao, Liang Chen, Shangran Xie, and Meng Pang, "Distributed birefringence measurement with beat period detection of homodyne Brillouin optical time-domain reflectometry," Opt. Lett. 37, 3936-3938 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-19-3936


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