Optical fiber ribbon core and optical fiber cable

Details Optical fiber ribbon core and optical fiber cable Optical fiber ribbon core and optical fiber cable

2007-03-29

2009-06-30

Font, Frank G (Department: 2883)

Optical waveguides

Optical transmission cable

Ribbon cable

C385S100000, C385S144000

Reexamination Certificate

active

07555183

ABSTRACT:
There are provided an optical fiber ribbon and optical fiber cable which suppress the deterioration of polarization mode dispersion and contribute to the increase of communication capacity in wavelength division multiplexing. An optical fiber ribbon includes a plurality of optical fibers12tied in a bundle and a ribbon coating layer13formed around the plurality of optical fibers to integrate the plurality of optical fibers, wherein the glass-transition temperature of the coating ranges from 80° C. to 130° C. and “a” is 0.01 mm2or less, where “a” is a sectional area of the ribbon coating layer13in a cross section in which outer half of the optical fiber at an edge of the ribbon and the coating of the optical fiber ribbon are taken along a line passing the center of the glass optical fiber positioned at one of edges of the ribbon out of the plurality of the optical fibers and being perpendicular to the horizontal plane of the optical fiber ribbon.

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