Apparatus for manufacturing an optical cable and cable so manufactured
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United States of America Patent
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Mar 26, 2013
Grant Date -
Jul 26, 2012
app pub date -
Mar 6, 2012
filing date -
Oct 6, 2009
priority date (Note) -
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Abstract
A method and apparatus for manufacturing an optical cable comprising at least one metal tube housing at least one optical fiber and having a predetermined excess fiber length (EFL) is described. In this method the metal tube is plastically deformed and shortened by a predetermined amount (St) greater than the predetermined EFL and is plastically deformed after shortening to provide a controlled elongation thereof so as to reach the predetermined excess fiber length. An optical cable so manufactured has a local excess fiber length (EFL) varying of or less than 0.2% along the longitudinal extension of the cable with respect to an average EFL of the cable.
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