1 July 2015 Long-range and high-resolution correlation optical time-domain reflectometry utilizing an all optical chaotic source
Author Affiliations +
Proceedings Volume 9655, Fifth Asia-Pacific Optical Sensors Conference; 965548 (2015) https://doi.org/10.1117/12.2203105
Event: Fifth Asia Pacific Optical Sensors Conference, 2015, Jeju, Korea, Republic of
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.
© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
M. Q. Fan, Z. N. Wang, H. Wu, D. V. Churkin, Y. Li, L. Zhang, X. Y. Qian, 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 (1 July 2015); doi: 10.1117/12.2203105; https://doi.org/10.1117/12.2203105
PROCEEDINGS
4 PAGES


SHARE
Back to Top