Optical cable with dry core and dry buffer tubes
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United States of America Patent
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Feb 25, 2014
Grant Date -
Dec 1, 2011
app pub date -
Dec 9, 2008
filing date -
Dec 9, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
An optical fiber cable includes at least one buffer tube that includes a plurality of water-blocking plugs and an optical fiber. The water-blocking plugs can be spaced along the buffer tubes, substantially filling the cross-sectional space within the buffer tube not already filled by the optical fiber. The water-blocking plugs can provide a stronger bond between the optical fibers and the inner tube. This is reflected by a high normalized pullout force for the optical fiber, such as, above 5.0 N/m. Yet, the resulting fiber optic cable does not suffer from problems associated with a higher pullout force, such as attenuation.
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