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Proceedings Paper

Long-range and high-resolution correlation optical time-domain reflectometry utilizing an all optical chaotic source
Author(s): M. Q. Fan; Z. N. Wang; H. Wu; D. V. Churkin; Y. Li; L. Zhang; X. Y. Qian; Y. J. Rao
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Paper Abstract

A high resolution optical time domain reflectometry (OTDR) based on an all-fiber chaotic source is demonstrated. We analyze the key factors limiting the operational range of such an OTDR, e.g., integral Rayleigh backscattering and the fiber loss, which degrade the optical signal to noise ratio at the receiver side, and then the guideline for counter-act such signal fading is discussed. The experimentally demonstrated correlation OTDR presents ability of 100km sensing range and 8.2cm spatial resolution (1.2 million resolved points), as a verification of the theoretical analysis. To the best of our knowledge, this is the first time that correlation OTDR measurement is performed over such a long distance with such high precision.

Paper Details

Date Published: 1 July 2015
PDF: 4 pages
Proc. SPIE 9655, Fifth Asia-Pacific Optical Sensors Conference, 965548 (1 July 2015); doi: 10.1117/12.2203105
Show Author Affiliations
M. Q. Fan, Univ. of Electronic Science and Technology of China (China)
Z. N. Wang, Univ. of Electronic Science and Technology of China (China)
H. Wu, Univ. of Electronic Science and Technology of China (China)
D. V. Churkin, Institute of Automation and Electrometry (Russian Federation)
Novosibirsk State Univ. (Russian Federation)
Aston Univ. (United Kingdom)
Y. Li, Univ. of Electronic Science and Technology of China (China)
L. Zhang, Univ. of Electronic Science and Technology of China (China)
X. Y. Qian, Univ. of Electronic Science and Technology of China (China)
Y. J. Rao, Univ. of Electronic Science and Technology of China (China)


Published in SPIE Proceedings Vol. 9655:
Fifth Asia-Pacific Optical Sensors Conference
Byoungho Lee; Sang-Bae Lee; Yunjiang Rao, Editor(s)

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