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SINGLEMODE OPTICAL FIBRE SMF ? G6520 pages
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OPTRAL
SMF
SINGLEMODE OPTICAL FIBRE SMF – G652
Step index singlemode optical fibres. G652 fibres provide optimum
performance in the 1310 nm wavelength. They can be used on
metropolitan and access networks, CATV and premises applications in
telecom.
All technical specifications are subject to change without prior notice. Consult OPTRAL for the latest edition.
These fibres comply with or exceed the ITU-T Recommendation G.652.B,
G.652.D, the IEC International Standard 60793-2-50 type B.1.3 Optical
Fiber Specification, ISO/IEC 11801 OS1, ISO/IEC 24702 OS2, Telcordia
GR-20-CORE, ANSI/ICEA S-87-640 and RUS 7CFR 1755.900.
GEOMETRICAL AND MECHANICAL CHARACTERISTICS
G.652.B
G.652.D
125 ± 1.0 μm
125 ± 0.7 μm
Core / Cladding Concentricity
≤ 0.6 μm
≤ 0.5 μm
Cladding Non-Circularity
≤ 1.0 %
≤ 0.7 %
Cladding Diameter
242 ± 7 μm
Primary Coating Diameter
≤5 %
Coating Non-Circularity
≤ 12 μm
Coating / Cladding Concentricity
≥ 8.8 N / ≥ 1 % / ≥ 100 Kpsi
Proof Test
OPTICAL CHARACTERISTICS
9.0 ± 0.4
10.1 ± 0.5
10.1 ± 0.5
1310 nm
< 0.35
< 0.35
1383 nm
< 1.0
< 0.35
1460 nm
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< 0.25
1550 nm
< 0.23
< 0.21
1625 nm
< 0.24
< 0.23
1285 – 1330 nm
< |3|
< |3|
1550 nm
< 18
< 18
1625 nm
Chomatic Dispersion Coefficient
(ps/nm.Km)
9.0 ± 0.4
1550 nm
Attenuation Coefficient
(dB/Km)
G.652.D
1310 nm
Mode Field Diameter
(μm)
G.652.B
< 22
< 22
1300 - 1322
1300 - 1322
< 0.092
< 0.090
1310 nm
1.467
1.467
1550 nm
1.468
1.468
< 1260
< 1260
< 0.2
< 0.1
Zero Dispersion Wavelength (nm)
2
Zero Dispersion Slope (ps / nm Km)
Group Index of Refraction
Cable Cutt-Off Wavelength (nm)
PMD (ps/√ Km)
1550 nm
Characteristics according to ITU-T G.652.B, G.652.C & D, IEC 60793-2-50 B.1.3, ISO/IEC 11801, ISO/IEC 24702, EN 50173,
Telcordia GR-20-CORE, ANSI/ICEA S-87-640 and RUS 7CFR 1755.900.
Optical specifications for uncabled fibre
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optral@optral.com - www.optral.com
Ref.: ETW.04.003/08
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