Patent ID: 8081853

Claim:
A single-fiber drop cable, comprising: an optical fiber having a glass fiber and a primary coating surrounding said glass fiber, said primary coating possessing (i) an in situ modulus of less than 0.50 MPa and (ii) a glass transition temperature of less than −55° C.; a buffer tube enclosing said optical fiber; and a cable jacket surrounding said buffer tube, said cable jacket comprising polyurethane and/or polyvinyl chloride; wherein said optical fiber has: at a wavelength of 1310 nanometers, a mode field diameter with nominal values of between 8.5 microns and 9.3 microns; a cable cut-off 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/(nm2·km); at a wavelength of 1550 nanometers, induced bending attenuation of (i) 0.03 dB or less for ten turns around a mandrel radius of 15 millimeters, (ii) 0.1 dB or less for one turn around a mandrel radius of 10 millimeters, and (iii) 0.5 dB or less for one turn around a mandrel radius of 7.5 millimeters; and at a wavelength of 1625 nanometers, induced bending attenuation of (i) 0.1 dB or less for ten turns around a mandrel radius of 15 millimeters, (ii) 0.2 dB or less for one turn around a mandrel radius of 10 millimeters, and (iii) 1.0 dB or less for one turn around a mandrel radius of 7.5 millimeters.