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Singlemode Fiber- G.657A1 Singlemode Fiber

Nanjing Wasin Fujikura of G.657A1 single mode fiber is the bending insensitivity fiber. Performance excelled ITU-TGB/T9771 the newest standard.

performance

characteristic characteristic date unit
Optical specifications
Attenuation coefficient 1310nm1383nm1550nm1625nm ≤0.35 ≤0.34≤0.21 ≤0.24 dB/kmdB/kmdB/kmdB/km
Attenuation vs.Wavelength @1310nm @1550nm 1285~1330nm1525~1575nm ≤0.04 ≤0.03 dB/kmdB/km
Wavelenth Dispersion 1285~1340nm1550nm1625nm ≥-3.5  ≤3.5≤18≤22 ps / (nm·km)ps / (nm·km)ps / (nm·km)
Zero-dispersion wavelength 1300~5324 nm
Zero-dispersion slope ≤0.092 ps/(nm2·km)
Polarization Mode Dispersion PMD Single fiber maximal value Fiber link value(M=20, Q=0.01 %) ≤0.20 ≤0.10 ps/√kmps/√km
cable cutoff wavelength ≤1260 nm
Mode field diameter MFD 1310nm 9.2±0.4 μm
Point discontinuity 1550nm ≤0.05 dB
Dimensions performance
Cladding diameter 125±0.7 μm
Cladding Non-circularity ≤0.5 %
Outer coating diameter 245±10 μm
Cladding/Coating Concentricity ≤12.0 μm
Core/cladding concentricity ≤0.5 μm
curvature(radius) ≥4 m
length 2.0~50.4 km/reel
Environmental perfbrmance(1310nm/1550nm)
Damp heat 85℃, humidity≥85%, 30days ≤0.05 dB/km
Dry heat 85℃±2℃, 30days ≤0.05 dB/km
Temperature Dependence -60℃~ +85℃, two weeks ≤0.05 dB/km
Water immersion 23℃±5℃, 30days ≤0.05 dB/km
Mechanical performance
Proof test level ≥0.69 GPa
Macrobend loss 10 turns cp30mm 10 turnscp30mm1 tums(p20mm1 turns(p20mm 1550nm1625nm1550nm1625mn ≤0.25 ≤1.0≤0.75≤1.5 dBdBdBdB
Strip force 1.0~5.0 N
Dynamic fatigue parameter ≥20

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