G.657A1 bend-insensitive single-mode fiber for access networks
Bend-insensitive single-mode fiber (G.657A1) has all the characteristics of non-dispersion-shifted single-mode fiber, with superior bending performance, and supports transmission across the full 1260~1625nm band. Under long-wavelength conditions, the bend radius can be as small as 10nm. Applicable standards: meets and exceeds the requirements of the ITU-T-recommended G.652D/G.657A & IEC60973-2-50 B1.3 optical fiber technical specifications.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Cladding Diameter | 125.0±0.7μm |
| Coating Diameter | 242±7μm |
| Outer-coating/cladding concentricity error (OCE) | ≤12μm |
| Inner-coating/cladding concentricity error (PCE) | ≤12μm |
| Core/cladding concentricity error (ECC) | ≤0.5μm |
| Cladding Non-Circularity | ≤0.7% |
| Coating non-circularity | ≤3% |
| Curl (bend radius) | ≥4m |
| Mode-field diameter (MFD) at 1310nm | 8.8±0.4μm |
| Mode-field diameter (MFD) at 1550nm | 9.8±0.5μm |
| Attenuation coefficient at 1310nm | ≤0.350dB/km |
| Attenuation coefficient at 1550nm | ≤0.210dB/km |
| Attenuation coefficient at 1383nm (after hydrogen aging) [1383nm; (after hydrogen aging)] | ≤0.350dB/km |
| Attenuation coefficient at 1625nm | ≤0.230dB/km |
| Comparison of maximum attenuation within 1285-1330nm with attenuation at 1310nm [1285-1330nm；1310nm] | ≤0.05dB/km |
| Comparison of maximum attenuation within 1525-1575nm with attenuation at 1550nm [1525-1575nm；1550nm] | ≤0.05dB/km |
| Attenuation discontinuity at 1310nm | ≤0.05dB |
| Attenuation discontinuity at 1550nm | ≤0.05dB |
| Zero-dispersion wavelength | 1312±12nm |
| Zero-dispersion slope | ≤0.091ps/(nm²*km) |
| Dispersion coefficient at 1550nm | ≤18ps/(nm*km) |
| Cable cutoff wavelength | ≤1260nm |
| Polarization-mode dispersion (PMD) | ≤0.2ps/√km |
| Proof-test tension | 1% ≥9N ≥100kpsi |
| Coating stripping force F | 1≤Mean F≤5N 1.3≤Peak F≤8.9N |
| Dynamic fatigue parameter Nd | ≥20 |
| Additional attenuation from temperature cycling (-60℃ to 85℃) [(-60℃ to 85℃)] | ≤0.05 dB/km |
| Additional attenuation from humidity-temperature cycling (-10℃ to 85℃, relative humidity 98%) [(-10℃ to 85℃, relative humidity 98%)] | ≤0.05 dB/km |
| Additional attenuation from water immersion (23℃, 30 days) [(23℃,30 days)] | ≤0.05 dB/km |
| Additional attenuation from damp heat (85℃, relative humidity 85%, 30 days) [(85℃、relative humidity 85%、30 days)] | ≤0.05 dB/km |
| Additional attenuation from dry-heat aging (85℃, 30 days) [(85℃、30 days)] | ≤0.05 dB/km |
| Bending Performance [10 turns φ30mm,1550nm] | ≤0.25dB |
| Bending Performance [10 turns φ32mm,1625nm] | ≤1dB |
| Bending Performance [1 turns φ20mm,1550nm] | ≤0.75dB |
| Bending Performance [1 turns φ20mm,1625nm] | ≤1.5dB |
| Fiber Length | 2.1~61km |
Applications
Key Features
Datasheet
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