Abrading – Abrading process – Glass or stone abrading
Patent
1997-02-25
1999-01-05
Morgan, Eileen P.
Abrading
Abrading process
Glass or stone abrading
451 59, 451 63, 451278, B24B 1100
Patent
active
058555030
ABSTRACT:
An improved fiber optic cable connector is provided that exhibits a consistent return loss rating of -60 dB or better. The connector comprises matable connector housings that terminate the ends of respective optical cables to be joined. Within each housing, the optical fiber of the respective cable is secured within a ceramic ferrule that extends axially of the connector. The endface of each optical fiber is exposed at the end of its respective ferrule. The ends of the ferrules are ground and polished in such a way that the endfaces of the optical fibers exhibit a planar undercut with respect to the lip of the axial passageway in which the fibers are secured. When the ferrules are brought and pressed together end-to-end as the connectors are mated, the material of each ferrule compresses until the endfaces of the optical fibers engage each other with near null pressure. The result is the near elimination of pressure on the optical fiber itself, which avoids a density and index of refraction change at the junction and thus improves return loss performance. A method of fabricating such a fiber optic cable connector is also provided.
REFERENCES:
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patent: 5185966 (1993-02-01), Mock, Jr. et al.
patent: 5458528 (1995-10-01), Lurie et al.
patent: 5464361 (1995-11-01), Suzuki et al.
patent: 5503590 (1996-04-01), Saitoh et al.
patent: 5667426 (1997-09-01), Minami et al.
Csipkes Andrei
Davis Felton
Palmquist John Mark
Snyder Donald Q.
Lucent Technologies - Inc.
Morgan Eileen P.
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