Long-range and high-resolution correlation optical time-domain reflectometry utilizing an all optical chaotic source


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.

Publication DOI: https://doi.org/10.1117/12.2203105
Divisions: College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT)
Additional Information: M. Q. Fan ; Z. N. Wang ; H. Wu ; D. V. Churkin ; Y. Li ; L. Zhang ; X. Y. Qian and Y. J. Rao. "Long-range and high-resolution correlation optical time-domain reflectometry utilizing an all optical chaotic source", Proc. SPIE 9655, Fifth Asia-Pacific Optical Sensors Conference, 965548 (July 1, 2015). Copyright 2015 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited. DOI: http://dx.doi.org/10.1117/12.2203105
Event Title: 5th Asia-Pacific Optical Sensors conference
Event Type: Other
Event Dates: 2015-05-20 - 2015-05-22
Uncontrolled Keywords: fiber measurements,optical time domain reflectometry,Rayleigh scattering,Applied Mathematics,Computer Science Applications,Electrical and Electronic Engineering,Electronic, Optical and Magnetic Materials,Condensed Matter Physics
ISBN: 978-1-62841865-1
Last Modified: 05 Jan 2024 08:27
Date Deposited: 03 Sep 2015 09:10
Full Text Link: http://proceedi ... ticleid=2388923
Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Conference contribution
Published Date: 2015-07-01
Authors: Fan, M.Q.
Wang, Z.N.
Wu, H.
Churkin, D.V.
Li, Y.
Zhang, L.
Qian, X.Y.
Rao, Y.J.



Version: Published Version

Export / Share Citation


Additional statistics for this record