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Durable Access™ 180μm G.657.A1 bend insensitive single-mode fiber exceeds the requirements of ITU-T G.657.A1 and has better bending performance within the bending radius range of 10-15mm. This fiber has a cross-section of only 54% of standard fiber and 80% of 200um ordinary small diameter fiber, which helps to miniaturize equipment or accommodate more quantities of fiber under similar laying conditions, maintain the same glass outer diameter and precise geometric size control as conventional optical fibers while significantly reducing the coating. 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 bending Induced Attenuation
|
Bending radius |
Number of Turns |
Wavelength |
Attenuation |
|
10mm |
1 |
1550nm |
≤0.75dB |
|
10mm |
1 |
1625nm |
≤1.50dB |
|
15mm |
10 |
1550nm |
≤0.25dB |
|
15mm |
10 |
1625nm |
≤1.00dB |
Cut-off Wavelength
|
Cable cut-off wavelength(λcc)≤1260nm |
Mode Field Diameter (MFD)
|
MFD at 1310nm |
8.6±0.4μm |
Dispersion
|
Zero-dispersion wavelength |
1300-1324nm |
|
Zero-dispersion slope |
≤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 |
180±10μm |
|
Coating-Cladding Concentricity |
≤10μm |
Mechanical Characteristics
Proof Test
|
Proof stress level |
1.52GPa（2.2%，220kpsi，19.6N） |
Strip Force
|
Force（peak） |
0.6N≤F≤8.9N |
|
Force（average） |
0.6N≤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 |
