Localization of a loss-inducing perturbation with variable accuracy along a test fiber using transmission-reflection analysis

We report on the detection of a loss-inducing perturbation with variable localization accuracy along a test fiber based on the analysis of transmitted and reflected powers of an unmodulated continuous-wave light source. The required accuracy of localization is provided by suitable distribution of th...

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Bibliographic Details
Published in:IEEE photonics technology letters 2004-02, Vol.16 (2), p.569-571
Main Authors: Spirin, V.V., Mendieta, F.J., Miridonov, S.V., Shlyagin, M.G., Chtcherbakov, A.A., Swart, P.L.
Format: Article
Language:English
Subjects:
Bragg gratings
Continuous fibers
Disturbances
Fiber gratings
Fibers
Light sources
Localization
Optical attenuators
Optical fiber communication
Optical fiber sensors
Optical fiber testing
Optical sensors
Perturbation methods
Position (location)
Propagation losses
Reflectivity
Superluminescent diodes
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Summary:We report on the detection of a loss-inducing perturbation with variable localization accuracy along a test fiber based on the analysis of transmitted and reflected powers of an unmodulated continuous-wave light source. The required accuracy of localization is provided by suitable distribution of the differential reflectivity along the fiber. The localization accuracy for a strong disturbance has been estimated as /spl plusmn/ 1.0 m along the 3.939-km single-mode test fiber and as /spl plusmn/ 5.0 mm along a designated 10-cm fiber part for both strong and weak perturbations.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2003.821048