Post assembly metallization of a device

G - Physics – 02 – B

Patent

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Details

G02B 6/255 (2006.01) G02B 6/38 (2006.01) G02B 6/42 (2006.01) G02B 6/44 (2006.01) G02B 6/36 (2006.01)

Patent

CA 2418971

An assembly including a fiber optic cable (1) assembled with a ferrule (8) where a gap exists between the fiber optic cable (1) and the ferrule. A hermetic seal is formed at the gap by depositing a layer of a metallic material (18) on the fiber optic cable and the ferrule. The fiber optic cable includes an optical fiber or core (6) surrounded b an insulative sheath. The ferrule has a large opening (10) and a small opening (12) bored out of its central region. When the fiber optic cable is mounted to the ferrule, the optical fiber is positioned within the small opening and the sheath is positioned within the large opening. The gap exists between the optical fiber and the small opening. The metallic material (18) is then adhered to a portion of the optical fiber and to a portion of the ferrule so as to form the hermetic seal at the gap.

L'invention concerne un ensemble composé d'un câble à fibres optique (1) assemblé avec une ferrule (8), le câble à fibres optiques (1) et la ferrule (8) étant séparés par un espace. Un joint étanche est formé au niveau de l'espace par déposition d'une couche de matière métallique (18) sur le câble à fibres optiques (1) et la ferrule (8). Le câble à fibres optiques (1) comprend une fibre optique ou une âme (6) entourée par une gaine isolante. La ferrule (8) comprend une grande ouverture (10) et une petite ouverture (12) formées dans sa région centrale. Lorsque le câble à fibres optiques (1) est monté sur la ferrule (8), la fibre optique est placée dans la petite ouverture et la gaine est placée dans la grande ouverture, la fibre optique et la petite ouverture étant séparées par un petit espace. La matière métallique (18) est alors appliquée sur une partie de la fibre optique et sur une partie de la ferrule de façon à former un joint étanche au niveau de l'espace.

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