Grooved-core cable for use with ribbon optical fibres and proces

Details Grooved-core cable for use with ribbon optical fibres and proces Grooved-core cable for use with ribbon optical fibres and proces

1992-02-11

1993-03-09

Ullah, Akm E.

Optical waveguides

Optical transmission cable

Tightly confined

G02B 600, G02B 636

Patent

active

051931346

ABSTRACT:
The described ribbon optical fibre cable comprises a cylindrical core (9) provided, on the outer surface thereof, with parallel grooves (10) extending in a helical manner along the cable axis, at least a pair of ribbons (1) being radially superposed within at least one of said grooves (10). Each ribbon (1a, 1b, 1c, 1d, 1e) comprises a plurality of optical fibres (2) each of which is covered with a primary layered coating (3), and a common coating (4) covers all the optical fibres of the ribbon. The primary coating (3) is formed with a first layer (5) directly in contact with the fibres (2) and a second layer (6) external to the first layer (5), the modulus of elasticity of said first layer (5) being lower than the modulus of elasticity of said second layer (6). Applied to each ribbon (1a, 1b, 1c, 1d, 1e) is a longitudinal tension greater than the longitudinal tension applied to the ribbon radially overlying the former. The process for making this ribbon optical fibre cable provides for the ribbons (1) being laid into the grooves by applying to each ribbon (1a, 1b, 1c, 1d, 1e) a longitudinal tension greater than the longitudinal tension applied to the ribbon radially superposed thereto.

REFERENCES:
patent: 4199224 (1980-04-01), Oestreich
patent: 4596443 (1986-06-01), Diemeer et al.
patent: 4690498 (1987-09-01), Priaroggia
patent: 4703998 (1987-11-01), Uchioke et al.
patent: 4707074 (1987-11-01), Heywood
patent: 4767184 (1988-08-01), Ogasawara et al.
patent: 4807962 (1989-02-01), Arroyo et al.
patent: 4820014 (1989-04-01), Nishimura et al.
patent: 4842438 (1989-06-01), Bortolin et al.
Hatano et al.: Int. Wire & Cable Symp. Proc. 1986, pp. 17-23 (no month).
Nirasawa et al.; Sumitomo Electric Tech. Review.n. 25, pp. 75-80, Jan. 1986.
Yamamura et al.; Joun. of Lightwave Techn.v.6, n. 12, pp. 1815-1820, Dec. 1988.
Esposto et al.; Int. Wire & Cable Sympos. Proc. '90, pp. 536-541 (no month).
Esposto et al.; Int. Wire & Cable Sympos. Proc. '91, pp. 749-757 (no month).
Donazzi et al.; 9 EFOC/LAN 91 Proceedings, pp. 116-121, Jun. 1991.

Affiliated with

Also associated with

Rating

Grooved-core cable for use with ribbon optical fibres and proces does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Grooved-core cable for use with ribbon optical fibres and proces, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Grooved-core cable for use with ribbon optical fibres and proces will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-215067