Title:
電気通信用の光ケーブル
Document Type and Number:
Japanese Patent JP4583605
Kind Code:
B2
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 arranged 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 1.5 turns/m.
Inventors:
Brandi, Giovanni
Consonni, Enrico
Consonni, Enrico
Application Number:
JP2000609826A
Publication Date:
November 17, 2010
Filing Date:
March 17, 2000
Export Citation:
Assignee:
Prismian Kavi et Systemi Energia Sochieta a Responsorabilita Limitata
International Classes:
G02B6/44
Domestic Patent References:
| JP62103914A | ||||
| JP63301912A | ||||
| JP63301911A | ||||
| JP10160945A | ||||
| JP8050208A | ||||
| JP7168070A | ||||
| JP7168068A |
Attorney, Agent or Firm:
Shinjiro Ono
Kazuo Shamoto
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Shigeru Sakuma
Yasuaki Omiyama
Kazuo Shamoto
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Shigeru Sakuma
Yasuaki Omiyama