Identification method of non-reflective faults based on index distribution of optical fibers | Zendy

Wonkyoung Lee | Zendy; Seung Il Myong | Zendy; Jyung Chan Lee | Zendy; SangSoo Lee | Zendy

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Identification method of non-reflective faults based on index distribution of optical fibers

Author(s) -

Wonkyoung Lee,

Seung Il Myong,

Jyung Chan Lee,

SangSoo Lee

Publication year - 2014

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.22.000325

Subject(s) - optical time domain reflectometer , optics , cable gland , optical fiber , fault (geology) , wavelength , materials science , optical fiber cable , upgrade , fiber , refractive index , graded index fiber , computer science , fiber optic sensor , telecommunications , physics , geology , seismology , composite material , operating system

This paper investigates an identification method of non-reflective faults based on index distribution of optical fibers. The method identifies not only reflective faults but also non-reflective faults caused by tilted fiber-cut, lateral connector-misalignment, fiber-bend, and temperature variation. We analyze the reason why wavelength dependence of the fiber-bend is opposite to that of the lateral connector-misalignment, and the effect of loss due to temperature variation on OTDR waveforms through simulation and experimental results. This method can be realized by only upgrade of fault-analysis software without the hardware change, it is, therefore, competitive and cost-effective in passive optical networks.

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