Low-temperature performance of loose tube fiber optic cables

Osman S. Gebizlioglu; P. B. Grimaldo; Gabor D. Kiss; M. J. Zammit

doi:10.1117/12.230109

15 January 1996 Low-temperature performance of loose tube fiber optic cables

Osman S. Gebizlioglu, P. B. Grimaldo, Gabor D. Kiss, M. J. Zammit

Proceedings Volume 2611, Optical Network Engineering and Integrity; (1996) https://doi.org/10.1117/12.230109
Event: Photonics East '95, 1995, Philadelphia, PA, United States

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.

Citation Download Citation

Osman S. Gebizlioglu, P. B. Grimaldo, Gabor D. Kiss, and M. J. Zammit "Low-temperature performance of loose tube fiber optic cables", Proc. SPIE 2611, Optical Network Engineering and Integrity, (15 January 1996); https://doi.org/10.1117/12.230109

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