Optical fiber cable and blowing installation technique

Details Optical fiber cable and blowing installation technique Optical fiber cable and blowing installation technique

G - Physics

02

B

G02B 6/50 (2006.01) G02B 6/44 (2006.01)

Patent

CA 2517783

This invention relates to an optical cable, in particular to an optical fibre having an axially extending glass strand for channelling light therealong, and a jacket layer disposed around the glass strand, the jacket layer having a textured outer surface for facilitating, under the influence of a fluid drag, the advancement of the optical cable along a conduit, wherein the glass strand in cross section to the axial direction has a width of less than 100 microns. The reduced width of the glass strand(s) in the cable will cause the cable to be less stiff, which will be particularly beneficially when installing the cable using a blowing technique.

L'invention concerne un câble optique, et notamment une fibre optique comprenant un fil de verre s'étendant axialement et permettant de véhiculer la lumière le long de celle-ci, ainsi qu'une couche de gaine disposée autour du fil de verre, la couche de gaine comportant une surface extérieure texturée qui, sous l'influence d'une force de traînée d'un fluide, facilite le passage du câble optique le long d'un conduit. En section transversale dans le sens axial, le fil de verre présente une largeur inférieure à 100 microns. La largeur réduite du ou des fils de verre dans le câble permet d'obtenir un câble moins rigide, ce qui est particulièrement avantageux lors de l'installation du câble au moyen d'une technique de soufflage.

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