Patent ID: 8467650

Claim:
An optical-fiber cable, comprising: a plurality of micromodules positioned within and surrounded by a polymeric cable jacket, one or more of said micromodules enclosing a plurality of optical fibers; wherein one or more of said optical fibers comprise a substantially cured primary coating surrounding a glass fiber, said substantially cured primary coating possessing (i) an in situ modulus of less than about 0.50 MPa and (ii) a glass transition temperature of less than about −55° C.; wherein one or more of said optical fibers have: at a wavelength of 1310 nanometers, a mode field diameter with nominal values of between 8.6 microns and 9.5 microns and a tolerance of ±0.4 micron; a cable cutoff wavelength of no more than 1260 nanometers; a zero chromatic dispersion wavelength of at least 1300 nanometers and no more than 1324 nanometers; at the zero chromatic dispersion wavelength, a slope of no more than 0.092 ps/(nm 2 ·km); at a wavelength of 1550 nanometers, a macrobending loss of (i) no more than 0.25 dB for ten turns around a mandrel radius of 15 millimeters and (ii) no more than 0.75 dB for one turn around a mandrel radius of 10 millimeters; and at a wavelength of 1625 nanometers, a macrobending loss of (i) no more than 1.0 dB for ten turns around a mandrel radius of 15 millimeters and (ii) no more than 1.5 dB for one turn around a mandrel radius of 10 millimeters; and wherein the optical-fiber cable possesses an inner cable fiber density of at least about 3.75 fibers/mm 2 .