G.652.D
The characteristics of a single-mode optical fibre and cable with zero-dispersion wavelength around 1310 nm, but which can also be used in the 1550 nm region
| FIBRE ATTRIBUTES | DETAIL | VALUE |
| Mode field diameter |
Wavelength Range of nominal values Tolerance |
1310 nm 8.6-9.2 μm ± 0.4 μm |
| Cladding Diameter | Nominal Tolerance |
125.0 μm ± 0.7 μm |
| Core concentricity error | Maximum | 0.6 μm |
| Cladding non-circularity | Maximum | 1.0% |
| Cable cut-off wavelength | Maximum | 1260 nm |
| Macrobend loss |
Radius Number of turns Maximum at 1625 nm |
30 mm 100 0.10 dB |
| Proof stress | Minimum | 0.69 GPa |
| Chromatic dispersion | λ0min | 1300 nm |
| coefficient |
λ0max S0min S0max |
1324 nm 0.073 ps/nm2·km 0.092 ps/nm2·km |
| Attenuation coefficient | Maximum from 1310 nm to 1625 nm Maximum at 1383 ± 3 nm hydrogen ageing after hydrogen ageing Maximum at 1530 – 1565 nm |
0.4 dB/km 0.4 dB/km 0.30 dB/km |
| PMD coefficient | M Q Maximum PMDQ |
20 cables 0.01% 0.2 ps/√km |
Single-mode fiber inherent attenuation throughout the six spectral bands