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DurableBand™ low water peak single-mode fiber is applied in 1260-1625nm all band transmission systems, with low loss at 1383nm, fully utilizing E-band transmission. DurableBand™ exceeds the requirements of ITU-T G.652.D, and is suitable for high-capacity, long-distance transmission. Accurate dimension ensures low splicing loss and high splicing efficiency, excellent mechanical properties and environmental characteristics ensure stable performance of optical fibers in various usage environments.
Optical Characteristics
Attenuation
| 1310nm | ≤0. 35 dB/km |
| 1383nm | ≤0. 33 dB/km |
| 1550nm | ≤0. 21 dB/km |
| 1625nm | ≤0. 23 dB/km |
Point Discontinuity
| 1310/1550nm ≤0. 02 dB |
Macro bendingInduced Attenuation
| Bending radius | Number of Turns | Wavelength | Attenuation |
| 30mm | 100 | 1625nm | ≤0. 10dB |
Cut-off Wavelength
| Cable cut-off wavelength (λcc)≤1260nm |
Mode Field Diameter (MFD)
| MFD at 1310nm | 9. 2±0. 4μm |
Dispersion
| Zero-dispersion wavelength | 1300-1324nm |
| Zero-dispersion slope | 0. 073~0. 092ps/nm2/km |
| Dispersionat 1550 wavelength | ≤18. 6ps/nm/km |
Polarization Mode Dispersion
| Max. individual fiber PMD | ≤0. 2ps/√km |
| PMD link design value | ≤0. 1ps/√km |
Geometric Characteristics
| Cladding diameter | 125±0.7μm |
| Core/clad concentricity error | ≤0.5μm |
| Cladding non-circularity | ≤1.0% |
| Fiber curl R | ≥4m |
| Coating diameter | 245±10μm |
| Coating-Cladding Concentricity | ≤10μm |
Mechanical Characteristics
Proof Test
| Proof stress level | 0.90GPa（1.3%，130kpsi，11.76N） |
Strip Force
| Force（peak） | 1.0N≤F≤8.9N |
| Force（average） | 1.0N≤F≤5.0N |
Tensile Strength
| Unaged (median; 0.5m) | ≥3.80GPa（≥550kpsi） |
| Aged (median; 0.5m) | ≥3.14GPa（≥460kpsi） |
Dynamic fatigue parameters
| Fatigue≥20 |
Environmental Characteristics
| Test items | Conditions | Induced Attenuation at 1550, 1625nm |
| Temperature | -60℃ to﹢85℃ | ≤0.03dB/km |
| Water Immersion | ﹢23℃/30Days | ≤0.03dB/km |
| Steady damp-heat | ﹢85℃/85%RH/30Days | ≤0.03dB/km |
| Dry heat aging | ﹢85℃/30Days | ≤0.03dB/km |