Optical unit for fibre-optic cable

Details Optical unit for fibre-optic cable Optical unit for fibre-optic cable

G - Physics

02

B

G02B 6/44 (2006.01) G02B 6/02 (2006.01)

Patent

CA 2229333

An optical unit (5a, 5b) comprising a number of optical fibres (2) grouped in a sheath (3a, 3b), and eventually assembled into one or more ribbons inside the sheath. The sheath (3a, 3b), at a temperature of about +20 degrees Celsius, has a Young module of less than 200 MPa and a hardness of less than 90 Shore A units; at a temperature of -40 degrees Celsius, it has a Young module of less than 2,000 MPa. Fibre-optic cable (10, 20) comprising at least one such optical unit (5a, 5b). Application of cable to telecommunications.

Unité optique (5a, 5b) comprenant une pluralité de fibres optiques (2) regroupées dans une gaine (3a, 3b), et éventuellement assemblées en un ou plusieurs rubans à l'intérieur de la gaine. La gaine (3a, 3b) présente, à une température d'environ +20 degrés Celsius, un module d'Young inférieur à 200 MPa et une dureté inférieure à 90 unités Shore A, et à une température d'environ -40 degrés Celsius, un module d'Young inférieur à 2000 MPa. Câble (10, 20) à fibres optiques comprenant au moins une telle unité optique (5a, 5b). Application du câble aux télécommunications.

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