| 摘要 |
A sealed connection for a lead-through of an optical fibre prevents passage of water or gas via the protective covering of the fibre at the same time as the connection preserves the mechanical protection of the fibre. A length A-A' of the fibre 4 is exposed by removing the corresponding section of covering. Both the exposed surface of the fibre 4 and the ends 6, 6' of the covering are sealed in a common bore 2 in a ferrule 1. End parts 9, 10, which can be demounted, can be added in order to lengthen the bore 2, in which the covering ends 6', 6 can be sealed. The sealed connection finds application in particular in leading optical fibres through a wall in a housing around an underwater amplifier. <IMAGE>
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