Optical waveguides – Optical transmission cable – Tightly confined
Reexamination Certificate
2005-02-08
2005-02-08
Glick, Edward J. (Department: 2882)
Optical waveguides
Optical transmission cable
Tightly confined
C385S103000
Reexamination Certificate
active
06853780
ABSTRACT:
Optical cable (1) for telecommunications, having low PMD and attenuation values, said cable comprising a central element (4), a plurality of optical fibres (3) and a layer of polymer material (5) devoid of discontinuities and incorporating both the central element (4) and the optical fibres, each of the optical fibres (3) being ranged along an open helix trajectory along which it has a torsion with a mean value of zero and a local maximum value of between 0.05 turns/m and 1 turns/m.
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Brandi Giovanni
Consonni Enrico
Artman Thomas R
Finnegan Henderson Farabow Garrett & Dunner L.L.P.
Glick Edward J.
Pirelli Cavi e Sistemi S.p.A.
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