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Protective-sheath-for-optical-waveguide-splice

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Protective sheath for optical waveguide splice

Details

Inventors: Gladenbeck, Jurgen; Frohlich, Gunter;
Assignee: U.S. Philips Corp. (New York, NY)
Primary Examiner: Sikes; William L.
Assistant Examiner: Wise; Robert E.
Attorney, Agent or Firm: Botjer; William L.

Protective sheath for fusion or adhesive optical waveguide splice. The protective sheath comprises a fusion bonding sleeve surrounding the splice and a shrinkable sleeve surrounding the fusion bonding sleeve. An oblong support is arranged between the fusion bonding sleeve and the shrinkable sleeve to protect the splice. The support has an open channel in which the splice is arranged.

DETAILED DESCRIPTION What is claimed is: 1.
A protective sheath for a fusion or adhesive optical waveguide splice, said protective sheath comprising: a fushion bonding sleeve surrounding the splice; an oblong support having an open channel therein, said channel accommodating the entire splice and at least part of the fusion bonding sleeve; and a heat shrunk sleeve surrounding the support and pressing the fusion bonding sleeve and splice into the open channel in the support.
2.
A protective sheath as claimed in claim 1, characterized in that the support has a U-shaped cross-section.
3.
A protective sheath as claimed in claim 1, characterized in that the support has a semicircular cross-section.
4.
A protective sheath as claimed in claim 1, characterized in that the support is made of metal.
5.
A protective sheath as claimed in claim 1, characterized in that the support is made of glass.
6.
A protective sheath as claimed in claim 1, characterized in that the support is made of a ceramic.
7.
A protective sheath as claimed in claim 1, characterized in that the support and the fusion bonding sleeve have equal lengths.
8.
A protective sheath as claimed in claim 7, characterized in that the heat shrunk sleeve has a length greater than the lengths of the support and the fusion bonding sleeve.
9.
A protective sheath as claimed in claim 1, characterized in that the support and the fusion bonding sleeve have cross-sectional dimensions chosen such that they are clamped together by the heat shrunk sleeve.

Description:
BACKGROUND OF THE INVENTION The invention relates to a protective sheath for a fusion or adhesive optical waveguides splice.
The sheath comprises a fusion bonding sleeve and a shrinkable sleeve surrounding the splice, and an oblong support arranged between the bonding sleeve and shrinkable sleeve.
Fusion or adhesive bonding of optical-fibers has been finding increasing application in practice for connecting optical waveguides.
Because the fibers have to be stripped of their plastic sheathing at the splice, the splice is mechanically weak and hence requires special protection

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