G.657A2 Bending insensitive single mode fiber

Optical fiber performance

Main indicator name

technical parameter

Geometry

cladding diameter

125.0±0.7μm

Coating Diameter

242±7μm

Coating/Cladding concentricity error

≤8μm

Core/Cladding concentricity error (ECC)

≤0.5um

non-circularity of cladding

≤0.7%

Coating roundness

≤2%

Bend radius

≥4m

optical performance

Magnetic field diameter (MFD) 1310nm

8.8±0.4μm

Magnetic field diameter (MFD) 1550nm

9.8±0.5μm

1310nm discount factor

≤0.335dB/km

1550nm discount factor

≤0.20dB/km

1383nm attenuation coefficient (after hydrogen aging)

≤0.29dB/km

1625nm discount factor

≤0.21dB/km

Maximum attenuation in the 1285-1330nm range versus 1310nm attenuation

≤0.05dB/km

Maximum attenuation in the 1525-1575nm range versus 1550nm attenuation

≤0.05dB/km

1310nm attenuation discontinuity

≤0.05dB

1550nm attenuation discontinuity

≤0.05dB

zero dispersion wavelength

1312±12nm

zero dispersion slope

≤0.091ps/(nm²*km)

1550nm dispersion coefficient

≤18ps/(nm*km)

Optical fiber cutoff wavelength

≤1260nm

Polarization mode dispersion (PMD)

≤0.2ps/√km

mechanical behavior

Filter tension

1% ≥9N ≥100 kpsi

Coating peeling force

1≤F average ≤5N 1.3≤F peak ≤8.9N

Dynamic fatigue parameter Nd

≥20

environmental performance

Temperature cycle additional attenuation (-60℃ to 85℃)

≤0.05dB/km

Humidity and temperature cycle with additional attenuation (-10°C to 85°C, 98% relative humidity)

≤0.05dB/km

Water immersion attenuation (23℃,30 days)

≤0.05dB/km

Humid heat additive attenuation (85°C, 85% RH, 30 days)

≤0.05dB/km

Dry heat aging with additional attenuation (85℃,30 days)

≤0.05dB/km

Bending performance

10 rings φ30mm, 1550nm

≤0.03dB

10 rings φ30mm, 1625nm

≤0.1dB

1 circle φ20mm, 1550nm

≤0.1dB

1 circle φ20mm, 1625nm

≤0.2dB

1 circle φ15mm, 1550nm

≤0.5dB

1 circle φ15mm, 1625nm

≤0.1dB

Fiber length

2.1~61km