Patent ID: 8165439
Filing Date: 2012-04-24
Classification: C03C,G02B

Abstract:
1. An ADSS cable, comprising: a polymeric cable jacket; and one or more buffer tubes positioned within said polymeric cable jacket, wherein at least one of said buffer tubes encloses an optical fiber; wherein said optical fiber comprises 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.; wherein, at a wavelength of 1310 nanometers, said optical fiber has a mode field diameter with nominal values of between 8.5 microns and 9.3 microns; wherein, said optical fiber has a standard cable cut-off wavelength of no more than 1260 nanometers; wherein, said optical fiber has a zero chromatic dispersion wavelength of at least 1300 nanometers and no more than 1324 nanometers; wherein, at the zero chromatic dispersion wavelength, said optical fiber has a slope of no more than 0.092 ps/(nm wherein, at a wavelength of 1550 nanometers, said optical fiber has 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; wherein, at a wavelength of 1625 nanometers, said optical fiber has 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; and wherein said cable is substantially free of conductive materials.