Optical waveguides – Optical transmission cable – Loose tube type
Reexamination Certificate
2006-04-25
2006-04-25
Healy, Brian (Department: 2883)
Optical waveguides
Optical transmission cable
Loose tube type
C385S103000
Reexamination Certificate
active
07035513
ABSTRACT:
A figure-eight fiber optic drop cable includes a messenger section and a carrier section connected by a web. The carrier section has at least one optical waveguide and at least one roving. In one embodiment, the carrier section has an average shrinkage of about 0.5% or less when separated from the messenger section during an average shrinkage test. Also the carrier section of the figure-eight fiber optic drop cable can have an average coefficient of thermal expansion (CTE) section after being separated from the messenger section of about 5.0×10−3%/° C. or less for preserving optical performance. Furthermore, a maximum delta attenuation of the at least one optical waveguide during thermal cycling may be about 0.3 dB/20 meters or less at a reference wavelength of about 1550 nm at a temperature of about −40° C. Other cable configurations are also possible with the invention.
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Mohler James D.
Seddon David A.
Carroll Jr. Michael E.
Corning Cable Systems LLC
Healy Brian
Peng Charlie
LandOfFree
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