Hermetic optical fiber feedthrough arrangement
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United States of America Patent
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Oct 13, 1992
Grant Date -
N/A
app pub date -
Sep 23, 1991
filing date -
Sep 23, 1991
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An hermetic optical fiber feedthrough arrangement has a separable two-piece metal ferrule (10) with opposite endwall openings (18, 26) of a size slightly larger than the diameter of an optical fiber (12) which extends therethrough. Preliminarily, that part of the fiber within the ferrule cavity (16) and openings (18, 16) has a metal coating (30). The fiber is hermetically sealed within the ferrule pieces (14, 24) by a quantity of a sealant (32). The ferrule may also include an outer radial flange (22) which is hermetically secured within an opening (48) in wall, bulkhead or plate (44) by a further sealant (54).
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