2015-Long-range and high-resolution correlation optical time-domain reflectometry utilizing an all optical chaotic source

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Teaching and Research Group:光纤传感与器件

Journal:Fifth Asia-Pacific Optical Sensors Conference

Key Words:Raman spectroscopy Signal detection Reflectometry Signal attenuation Spatial resolution Rayleigh ...

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 ...

All the Authors: Y. J. Rao, X. Y. Qian, Y. Li, D. V. Churkin, H. Wu, Zinan Wang,M. Q. Fan

First Author:M. Q. Fan

Indexed by:Unit Twenty Basic Research

Correspondence Author:Zinan Wang

Discipline:Engineering

First-Level Discipline:Optical engineering

Volume:9655

Page Number:965548

Translation or Not:no

Date of Publication:2015-07-01

Date of Publication:2015-07-01