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DurableBand™ -R large mode field anti-bending low water peak single-mode fiber is applied in 1260-1625nm all band transmission systems. It has low loss at 1383nm and fully utilizes E-band transmission. DurableBand™ -R exceeds the requirements of ITU-T G.652.D and ITU-T G.657.A1. It is suitable for high-capacity, long-distance transmission and access network. 9.2 micron mode field diameter (MFD) 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 | ≤0.32 dB/km |
| 1383nm | ≤0.32 dB/km |
| 1550nm | ≤0.18 dB/km |
| 1625nm | ≤0.20 dB/km |
Point Discontinuity
| 1310/1550nm | ≤0.02dB |
Macro bending Induced Attenuation
| Bending radius | Number of Turns | Wavelength | Attenuation |
| 10mm | 1 | 1550nm | ≤0.50dB |
| 10mm | 1 | 1625nm | ≤1.50dB |
| 15mm | 10 | 1550nm | ≤0.05dB |
| 15mm | 10 | 1625nm | ≤0.30dB |
Cutoff Wavelength
| Cable cutoff 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 |
| Dispersion at 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℃/30 Days | ≤0.03dB/km |
| Steady damp-heat | ﹢85℃/85%RH/30 Days | ≤0.03dB/km |
| Dry heat aging | ﹢85℃/30 Days | ≤0.03dB/km |