Optical cable and method for producing an optical cable

Details Optical cable and method for producing an optical cable Optical cable and method for producing an optical cable

G - Physics

02

B

G02B 6/44 (2006.01)

Patent

CA 2574999

An optical cable (1) comprises a cable sheath (11) and at least two optical transmission elements (101) and (102), which are placed inside the cable sheath (11). One (101) of the optical transmission elements (101, 102) comprises a fiber sleeve (1011), at least one optical waveguide (10101) and at least one swelling element (10111). The fiber sleeve (1011) surrounds the at least one optical waveguide (10101) and the at least one swelling element (10111). The swelling element (10111) contains a swelling material, which can swell by supplying it with water. When water penetrates the optical transmission element, the swelling element (10111) swells whereby sealing the optical transmission element and preventing water from spreading in the longitudinal direction of the optical transmission element.

L'invention concerne un câble optique (1) comprenant une gaine de câble (11) et au moins deux éléments de transmission optiques (101), disposés à l'intérieur de la gaine de câble (11). Un (10) des éléments de transmission optiques (101 et 102) comprend une enveloppe de conducteur (1011), au moins un guide d'ondes lumineuses (10101) et au moins un élément expansif (10111) contenant un matériau de gonflement, apte à gonfler pour acheminer de l'eau. Lorsque l'eau pénètre dans l'élément de transmission optique, l'élément expansif (10111) enfle et étanchéifier l'élément de transmission optique (10111), de sorte à empêcher toute propagation de l'eau dans le sens longitudinal de l'élément de transmission optique.

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