High resolution optical time-domain reflectometry based on correlation utilizing an all-fiber chaotic source

M. Q. Fan; Z. N. Wang; H. Wu; D. V. Churkin; Y. Li; L. Zhang; X. Y. Qian; Y. J. Rao

doi:10.1117/12.2184238

1 July 2015 High resolution optical time-domain reflectometry based on correlation utilizing an all-fiber chaotic source

M. Q. Fan, Z. N. Wang, H. Wu, D. V. Churkin, Y. Li, L. Zhang, X. Y. Qian, Y. J. Rao

Author Affiliations +

Proceedings Volume 9655, Fifth Asia-Pacific Optical Sensors Conference; 96553J (2015) https://doi.org/10.1117/12.2184238
Event: Fifth Asia Pacific Optical Sensors Conference, 2015, Jeju, Korea, Republic of

Abstract

We propose a high-resolution optical time domain reflectometry (OTDR) based on an all-fiber supercontinuum source. The source simply consists of a laser with moderate power and a section of fiber which has a zero dispersion wavelength near the laser’s central wavelength. Spectrum and time domain properties of the source are investigated, showing that the source has great capability in nonlinear optics, such as correlation OTDR. We analyze one of the key factors limiting the operational range of such an OTDR, i.e., sampling time. Finally, we experimentally demonstrate a correlation OTDR with 25km sensing range and 5.3cm spatial resolution, as a verification of theoretical analysis.

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M. Q. Fan, Z. N. Wang, H. Wu, D. V. Churkin, Y. Li, L. Zhang, X. Y. Qian, and Y. J. Rao "High resolution optical time-domain reflectometry based on correlation utilizing an all-fiber chaotic source", Proc. SPIE 9655, Fifth Asia-Pacific Optical Sensors Conference, 96553J (1 July 2015); https://doi.org/10.1117/12.2184238

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