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Proceedings Paper

Low-temperature performance of loose tube fiber optic cables
Author(s): Osman S. Gebizlioglu; P. B. Grimaldo; Gabor D. Kiss; M. J. Zammit
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Paper Abstract

Some recent service-affecting field failures in cold weather raised concerns about the low- temperature performance of loose tube fiber optic cables. These failures occurred predominantly in aerial transmission lines operated at 1550 nm. Field OTDR (optical time domain reflectometry) analyses and laboratory measurements established that the increased attenuation at low temperature resulted from fiber microbending caused primarily by the thermal contraction of buffer tubes. Cable structure tightness based on a model of mechanical coupling between cable elements and excess fiber length-to-buffer tube inner diameter ratio emerged to be two key parameters to control the magnitude of this temperature-induced cable loss (TIC). Based on our analyses, we developed a clamping device for re-termination of affected cables in the telecommunications network.

Paper Details

Date Published: 15 January 1996
PDF: 12 pages
Proc. SPIE 2611, Optical Network Engineering and Integrity, (15 January 1996); doi: 10.1117/12.230109
Show Author Affiliations
Osman S. Gebizlioglu, Bell Communications Research (United States)
P. B. Grimaldo, Bell Communications Research (United States)
Gabor D. Kiss, Bell Communications Research (United States)
M. J. Zammit, Bell Communications Research (United States)

Published in SPIE Proceedings Vol. 2611:
Optical Network Engineering and Integrity
Hakan H. Yuce; Dilip K. Paul; Roger A. Greenwell, Editor(s)

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