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Easy bend fiber characteristics (ITU-G.657B3)

G657B3 optic fiber
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Description
Easy bend fiber characteristics (ITU-G.657B3)
Category Description   Specifications
Optical Specifications Attenuation @1310nm ≤0.35dB/km
@1383nm ≤0.30dB/km
@1490nm ≤0.24dB/km
@1550 ≤0.20dB/km
@1625 ≤0.23dB/km
Attenuation Non-uniformity @1310nm, 1550nm ≤0.05dB
Point Discontinuity @1310nm, 1550nm ≤0.05dB
Attenuation vs Wavelength @1285nm - 1330nm ≤0.03dB/km
@1525nm - 1575nm ≤0.02dB/km
Zero Dispersion Wavelength   1304nm-1324nm
Zero Dispersion Slope   ≤0.092ps/ (nm2·km)
Dispersion @1550nm ≤18ps/ (nm·km)
@1625nm ≤ 23ps/ (nm·km)
PMD Link Design Value
(m=20 Q=0.01%)
  ≤0.06ps√km
Maximum Individual Fiber   ≤0.2ps√km
Cable Cut-off wavelength(λ cc)   ≤1260nm
Macro Bending Loss (1turns; Φ10mm) @1550nm ≤0.30dB
@1625nm ≤1.50dB
Mode Field Diameter @1310nm 8.6±0.4µm
@1550nm 9.65±0.5µm
Dimensional Specifi-cations Fiber Curl Radius   ≥4.0m
Cladding Diameter   125±0.7µm
Core / Clad Concentricity   ≤0.5µm
Cladding Non-circularity   ≤0.7%
Coating Diameter   242±5µm
Coating / Cladding Concentricity   ≤12µm
Mechanical Specifi-cations Proof Test   ≥100kspi (0.7GPa)

Environment Specification
 1310 & 1550 & 1625nm



 
Fiber Temperature Dependence -60oC~ +85oC ≤0.05dB/km
Temperature Humidity Cycling -10oC~+85oC;up to 98%RH ≤0.05dB/km
Heat Aging Induced Attenuation 85±2oC ≤0.05dB/km
Water Immersion Induced 23±2oC ≤0.05dB/km
Damp Heat 85oC at 85% RH ≤0.05dB/km

 

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