Protective casing for optical fibers and a fan-out assembly...

G - Physics – 02 – B

Patent

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Details

G02B 6/44 (2006.01)

Patent

CA 2589872

A robust protective casing is provided that includes an inner tubing having a passageway therethrough, an outer tubing, and a plurality of flexible strength members disposed between the inner and outer tubing. The protective casing has a wall tubing thickness ratio of the inner tubing wall thickness to the outer tubing wall thickness of about .05 or less while still inhibiting the kinking of the protective casing during relatively small bend radii. Additionally, an outer diameter of the protective casing is relatively small while still allowing the routing of a standard sized 900 micron tight-buffered optical fiber through the passageway. Thus, the protective casing is advantageous in applications where limited space is available space. A fan-out assembly using the protective casings is also described.

Cette invention concerne un boîtier de protection solide comprenant un tube intérieur dans lequel un passage est défini, un tube extérieur et une pluralité d'éléments de résistance souple disposés entre le tube intérieur et le tube extérieur. Le boîtier de protection présente un rapport d'épaisseur des parois des tube (épaisseur de la parois du tube intérieur sur épaisseur de la paroi du tube extérieur) inférieur ou égal à environ 0,5 qui permet toutefois de continuer d'inhiber le vrillage du boîtier de protection pour des rayons de courbure relativement faibles. En outre, le diamètre extérieur du boîtier de protection est relativement petit et permet néanmoins d'assurer le routage d'une fibre optique à gaine intermédiaire serrée de 900 microns de taille standard par le passage. Le boîtier de protection de cette invention présente divers avantages pour des applications dans lesquelles l'espace disponible est un espace limité. Cette invention concerne également un ensemble de sortance utilisant les boîtiers de protection.

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