Singlemode Optical Fiber ( 250µm )
This specification conforms to the requirement of IEC 60793 B1.1 and ITU-T G.652.A/B.
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OPTICAL CHARACTERISTICS
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Characteristics
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Conditions
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Specified Values
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Unit
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Attenuation Coefficient
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1310 nm
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≦ 0.34
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〔dB/km〕
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1285 – 1330 nm
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≦ 0.36
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〔dB/km〕
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1550 nm
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≦ 0.21
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〔dB/km〕
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Mode Field Diameter
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1310 nm
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8.7 ~ 9.7
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〔µm〕
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Fiber Cut-Off Wavelength
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1150 ~ 1330
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〔nm〕
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Cable Cut-Off Wavelength
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< 1260
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〔nm〕
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Zero Dispersion Wavelength
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1300 ~ 1322
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〔nm〕
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Zero Dispersion Slope
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≦ 0.092
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〔ps/(nm2·km)〕
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Dispersion Coefficient
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1285 – 1330 nm
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≦ 3.1
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〔ps/(nm·km)〕
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1550 nm
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≦ 18
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〔ps/(nm·km)〕
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PMD
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≦ 0.2
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〔ps/√km〕
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BACKSCATTER CHARACTERISTICS
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Attenuation Directional Uniformity
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≦ 0.03
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〔dB/km〕
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Attenuation Uniformity
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≦ 0.05
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〔dB〕
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Reflections
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Not Allowed
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Group Index of Refraction
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1310 nm
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1.467
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1550 nm
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1.468
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PHYSICAL CHARACTERISTICS
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Core / Cladding Concentricity Error
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≦ 0.8
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〔µm〕
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Cladding Diameter
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125 ± 1
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〔µm〕
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Cladding Non-Circularity
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≦ 2.0
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〔%〕
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Coating Diameter (UV Curable Acrylate)
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245 ± 10
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〔µm〕
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Clad/Coat Concentricity Error
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≦ 6
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〔µm〕
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Fiber curl
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≧ 4
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〔m〕
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Proof Test
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100
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〔kpsi〕
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Bend Induced Attenuation at 1625 nm
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≦ 0.1
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〔dB〕
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(100 turns around a mandrel of 60 mm diameter)
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Fatigue Resistance Parameter (nd)
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20
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Average Coating Strip Force / Peak Coating Strip Force
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≧ 105 / 140 (1.4)
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〔g〕/ (N)
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Length (Typical)
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12.6～25.2
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〔km〕
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ENVIRONMENTAL CHARACTERISTICS
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Temperature Dependence at 1310 nm and 1550 nm
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≦ 0.05
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〔dB/km〕
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Induced Attenuation – 60°C to +85°C
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Watersoak Dependence at 1310 nm and 1550 nm
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≦ 0.05
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〔dB/km〕
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Induced Attenuation at 20°C for 30 days
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Damp Heat Dependence at 1310 nm and 1550 nm
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≦ 0.05
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〔dB/km〕
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Induced Attenuation at 85°C, 85%R.H., 30 days
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