Coated optical fibers and cables and method

G - Physics – 02 – B

Patent

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Details

18/103, 88/97.1

G02B 6/44 (2006.01) B29D 11/00 (2006.01) C03C 25/10 (2006.01)

Patent

CA 2020885

Abstract of the Disclosure Optical communication media particularly adapted for blow-in installation, including single optical fibers and lightweight flexible optical cables comprising one or more glass optical fibers in a multilayer polymer coating, are disclosed. The multilayer coating includes a textured polymer outer layer and at least one soft buffer layer positioned between the textured polymer outer layer and the glass optical fiber or fibers, the buffer layer comprising a low Tg polymer and preferably having a layer thickness at least sufficient to maintain thermally induced microbending loss in the optical communication medium below about 0.5 db/km at medium operating temperatures in the range of 0 °C to -60 °C.

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