Hermetic seal between a package and an optical fiber

The invention relates to a hermetic feedthrough of an optical fiber into a package for an optical module, that includes a package ferrule hermetically attached to the package or integral therewith, a fiber ferrule hermetically sealed around the optical fiber, and a compression sleeve hermetically se...

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Bibliographic Details
Main Authors JIN WENLIN, MOIDU ABDUL JALEEL K
Format Patent
LanguageChinese
English
Published 22.06.2011
Subjects
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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Summary:The invention relates to a hermetic feedthrough of an optical fiber into a package for an optical module, that includes a package ferrule hermetically attached to the package or integral therewith, a fiber ferrule hermetically sealed around the optical fiber, and a compression sleeve hermetically sealed around the package ferrule. The compression sleeve is hermetically sealed to the fiber ferrule or integral therewith, and wherein a coefficient of thermal expansion (CTE) of the compression sleeve is greater than a CTE of the package ferrule so that a joint between the compression sleeve and the package ferrule is under compressive stress.
Bibliography:Application Number: CN20101586977