Draka Comteq B.v.

Prysmian S.p.a.

Denise Lorraine Collado

Don Parris

Brian G Risch

Jeffrey Scott Barker

Patrick King Strong

The present invention relates to central loose optical-fiber cables. An exemplary optical-fiber cable includes a central buffer tube that encloses loose optical fibers. Stranded strength yarns surround the central buffer tube and the optical fibers positioned within the central buffer tube's annular space, and a cable jacket surrounds the stranded strength yarns.

Central loose tube optical-fiber cable

Disclosed is a low-shrink buffer tube having a reduced diameter. The buffer tube provides adequate crush resistance and is suitable for deployments requiring mid-span access.

Low-shrink reduced-diameter dry buffer tubes

Low-shrink reduced-diameter buffer tubes

A method for manufacturing an optical-fiber buffer tube uses a prewetting agent possessing excellent surface affinity, wetting, and interfacial adhesion with optical-fiber coatings. The prewetting agent does not pool within or leak from the resulting buffer tubes during storage or vertical installation.

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Newton, NC, United States of America

Denise Lorraine Collado