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Low-coherent WDM reflectometry for accurate fiber length monitoring

Hui, Rongqing
Thomas, J.
Allen, Christopher Thomas
Fu, Biao
Gao, Shuang
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Abstract
A fiber-optic low-coherent reflectometer was developed to accurately monitor fiber length variation. A large length-coverage range was obtained by using a fiber Bragg grating array in a wavelength-division-multiplexing configuration. The polarization mismatch-induced signal fading was eliminated by applying a polarization spreading technique at the optical receiver and, therefore, no active polarization adjustment was necessary for long-term measurement.
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©2003 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Date
2003-01
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Research Projects
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Keywords
Optical delay lines, Optical distance measurement, Optical fiber measurement, Optical interferometry, Optical polarization
Citation
Hui, R; Thomas, J; Allen, C; Fu, B; Gao, S. Low-coherent WDM reflectometry for accurate fiber length monitoring. IEEE PHOTONICS TECHNOLOGY LETTERS. January 2003. 15(1) : 96-98
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