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Title: Hermetic fiber optic-to-metal connection technique

Patent ·
OSTI ID:7233463

A glass-to-glass hermetic sealing technique is disclosed which can be used to splice lengths of glass fibers together. A solid glass preform is inserted into the cavity of a metal component which is then heated to melt the glass. An end of an optical fiber is then advanced into the molten glass and the entire structure cooled to solidify the glass in sealing engagement with the optical fiber end and the metal cavity. The surface of the re-solidified glass may be machined for mating engagement with another component to make a spliced fiber optic connection. The resultant structure has a helium leak rate of less than 1[times]10[sup [minus]8]cm[sup 3]/sec. 5 figs.

Assignee:
Dept. of Energy, Washington, DC (United States)
Patent Number(s):
US 5143531; A
Application Number:
PPN: US 7-683019
OSTI ID:
7233463
Resource Relation:
Patent File Date: 10 Apr 1991
Country of Publication:
United States
Language:
English