| Characteristics | Conditions | Specified values | Units |
| Optical Characteristics |
| Nominal Effective Area | 1550nm | 125 | [μm2] |
| Mode Field Diameter | 1550nm | 12.0-13.0 | [μm] |
| Attenuation | 1550nm | ≤0.19 | [dB/km] |
| 1625nm | ≤0.21 | [dB/km] |
| Attenuation vs. Wavelength | 1525-1575nm, in reference to 1550nm | ≤0.02 | [dB/km] |
| Max. α difference | 1550-1625nm, in reference to 1550nm | ≤0.03 | [dB/km] |
| Dispersion Coefficient | 1550nm | ≤23 | [ps/(nm·km）] |
| 1625nm | ≤27 | [ps/(nm·km）] |
| Dispersion Slope | 1550nm | 0.050-0.070 | [ps/(nm2·km）] |
| PMD | Maximum Individual Fibre | -- | ≤0.1 | [ps/√km] |
| Link Design Value（M=20，Q=0.01%) | -- | ≤0.04 | [ps/√km] |
| Typical Value | -- | 0.03 | [ps/√km] |
| Cable Cutoff Wavelength (λCC) | -- | ≤ 1520 | [nm] |
| Effective Group Index of Refraction | 1550nm | 1.465 | -- |
| Point Discontinuities | 1550nm | ≤0.05 | [dB] |
| Geometrical Characteristics |
| Cladding Diameter | -- | 125.0±1.0 | [μm] |
| Cladding Non-Circularity | -- | ≤1.0 | [%] |
| Coating Diameter | -- | 235-255 | [μm] |
| Coating-Cladding Concentricity Error | -- | ≤12.0 | [μm] |
| Coating Non-Circularity | -- | ≤6.0 | [%] |
| Core-Cladding Concentricity Error | -- | ≤0.6 | [μm] |
| Curl(radius) | -- | ≥4 | [m] |
| Delivery Length1 | -- | Up to 25.2 | [km/reel] |
| Environmental Characteristics 1550nm & 1625nm |
| Temperature Dependence Induced Attenuation | -60℃ to 85℃ | ≤0.05 | [dB/km] |
| Temperature-Humidity Cycling Induced Attenuation | -10°C to 85°C, 98% RH | ≤0.05 | [dB/km] |
| Watersoak Dependence Induced Attenuation | 23°C，for 30 days | ≤0.05 | [dB/km] |
| Damp Heat Dependence Induced Attenuation | 85°C , 85% RH，30 days | ≤0.05 | [dB/km] |
| Dry Heat Aging | 85℃，for 30 days | ≤0.05 | [dB/km] |
|
| Proof Test2 | -- | ≥9.0 | [N] |
| -- | ≥1.0 | [%] |
| -- | ≥100 | [kpsi] |
| Macro-bend Induced Loss | 100 Turns Around a Mandrel of 30 mm Radius | 1550nm | ≤0.10 | [dB] |
| 1625nm | ≤0.10 | [dB] |
| Coating Strip Force | typical average force | 1.5 | [N] |
| peak force | 1.3-8.9 | [N] |
| Dynamic Fatigue Parameter(nd) | -- | ≥20 | -- |
| Remark： 1. Other delivery lengths are available. 2. Higher proof test level is available. |
Applications
Attributed to its large effective area and lower attenuation performance, FarBand® fibre is the optimum choice that supports various applications such as Ethernet, Internet Protocol (IP), Synchronous Optical Network (SONET) and Wavelength Division Multiplexing (WDM). FarBand® fibre enables high input power and minishes transmitted power distribution density because of its enlarged effective area, suppressing nonlinear effect, such as Brillouin scattering, self-phase modulation and cross phase modulation, thus it satisfys multi-channel DWDM system. Meanwhile FarBand® fibre provides low signal attenuation, which satisfys the optical fibre attenution requirement in long haul transmission, and provides more system redundancy.
Product standards
FarBand® fibre complies with or even exceeds the ITU-T G.654.B/E recommendation and IEC 60793-2-50 B1.2 Optical Fibre Specification. YOFC tightens many parameters of fibre products.
