Single-mode Optic Fiber

Optical Characteristics G652D G657
Attenuation @1310 nm ≤0.35 dB/KM ≤0.35 dB/KM
@1383 nm ≤0.35 dB/KM (After H2 aging) ≤0.35 dB/KM (After H2 aging)
@1550 nm ≤0.22 dB/KM ≤0.21dB/KM
@1625 nm ≤0.24 dB/KM ≤0.23 dB/KM
Attenuation vs.Wavelength @1310 nm 1285~1330 nm ≤0.03 dB/KM ≤0.03 dB/KM
@1550 nm 1525~1375 nm ≤0.02 dB/KM ≤0.02 dB/KM
Dispersion Coefficient 1530~1565 nm
1565~1625 nm
1285~1340 nm -3.0~3.0 ps/(nm.km)
@1550 nm ≤18 ps/(nm.km) ≤18 ps/(nm.km)
@1625 nm ≤22 ps/(nm.km) ≤22 ps/(nm.km)
Zero Dispersion Wavelength 1302~1322 nm.km 1300~1324 nm.km
Zero Dispersion Slope ≤0.090 ps/(nm².km) ≤0.092 ps/(nm².km)
Zero Dispersion Slope (Typical) ≤0.086 ps/(nm².km)
Polarization Mode Dispersion Maximum Individual Fiber ≤0.2 ps/√km ≤0.2 ps/√km
Design Link (Value M=20.0=0.01%) ≤0.1 ps/√km ≤0.1 ps/√km
Cable Cut-off Wavelength ≤1260 nm ≤1260 nm
Mode Field Diameter @1310 nm 9.2±0.4 µm 8.8±0.4 µm
@1550 nm 10.4±0.5 µm 9.8±0.5 µm
Group Index of Refraction
(Typical)
@1310 nm 1.466 1.466
@1550 nm 1.467 1.467
Geometrical Characteristics
Cladding Diameter 124.8±0.7 µm 124.8±0.7 µm
Cladding Non-Circularity ≤0.7% ≤0.7%
Coating Diameter 245±5 µm 245±5 µm
Coating/Cladding Concentricity Error ≤12.0 µm ≤12.0 µm
Coating Non-Circularity ≤6.0% ≤6.0%
Core/Cladding Concentricity Error ≤0.5 µm ≤0.5 µm
Curl (Radius) ≥4 m ≥4 m
Environmental Characteristics (@1310 nm/@1550 nm)
Attenuation at Temperature cycling △ α (-60°C~+85°C) ≤0.05 dB/km ≤0.05 dB/km
Attenuation at Temperature-Humidity Cycling (-10°C~+85°C, 98% R.H.) ≤0.05 dB/km ≤0.05 dB/km
Attenuation at Damp Heat Dependence (85°C, 98% R.H., 30 days) ≤0.05 dB/km ≤0.05 dB/km
Attenuation at Watersoak Dependence (23°C, 30 days) ≤0.05 dB/km ≤0.05 dB/km
Mechanical Characteristics
Proof Test (Off Line) ≥9.0 N (≥100 kpsi) ≥9.0 N (≥100 kpsi)
Attention at Bending
Dependence
1 Turn, 7.5 mm Radius ≤0.5 dB
1Turn, 10 mm Radius ≤0.1 dB
1Turn, 15 mm Radius ≤0.03 dB
1Turn, 25 mm Radius ≤0.05 dB
Coating Strip Force (Typical) 1.7 N 1.7 N
Dynamics Stress Corrosion Susceptibility Parameter (Nd, Typical) ≥20 ≥20