The Corning SMF-28e Optical Fiber is a single-mode fiber supplied in a 35 km spool for long-distance metropolitan and access network deployments. This fiber meets ITU-T G.652.D, IEC 60793-2-50 Type B1.3, TIA/EIA 492-CAAB, Telcordia GR-20, and ITU-T G.657 Table A specifications, ensuring full interoperability with standard single-mode infrastructure. It delivers low attenuation across the C and L bands with controlled dispersion characteristics suitable for high-bandwidth, extended-reach applications.
Technical Specifications
Attenuation Performance
• 1310 nm: ≤ 0.32 dB/km
• 1383 nm: ≤ 0.32 dB/km
• 1490 nm: ≤ 0.21 dB/km
• 1550 nm: ≤ 0.18 dB/km
• 1625 nm: ≤ 0.20 dB/km
• Attenuation difference at 1330 nm (ref. 1310 nm): ≤ 0.03 dB/km
• Attenuation difference at 1575 nm (ref. 1550 nm): ≤ 0.02 dB/km
Dispersion Characteristics
• Chromatic dispersion at 1550 nm: ≤ 18.0 ps/(nm•km)
• Chromatic dispersion at 1625 nm: ≤ 22.0 ps/(nm•km)
• Zero dispersion wavelength (λ0): 1302–1322 nm or 1304–1324 nm
• Zero dispersion slope (S0): ≤ 0.089 ps/(nm²•km) or ≤ 0.092 ps/(nm²•km)
• PMD link design value: ≤ 0.06 ps/√km or ≤ 0.04 ps/√km
• Maximum individual fiber PMD: ≤ 0.1 ps/√km or ≤ 0.2 ps/√km
Geometry & Strength
• Core/cladding diameter: 125 µm ± 0.7 µm
• Coating diameter: 245 µm ± 5 µm
• Mode-field diameter at 1310 nm: 9.2 ± 0.4 µm or 8.6 ± 0.4 µm
• Mode-field diameter at 1550 nm: 9.8 ± 0.5 µm
• Cable cutoff wavelength: ≤ 1260 nm
• Proof test: ≥ 100 kpsi (0.7 GPa)
Bending Loss
• 32 mm mandrel at 1550 nm (1 turn): ≤ 0.03 dB
• 50 mm mandrel at 1310 nm (100 turns): ≤ 0.03 dB
• 50 mm mandrel at 1550 nm (100 turns): ≤ 0.03 dB
• 60 mm mandrel at 1625 nm (100 turns): ≤ 0.03 dB
Environmental Performance
• Operating temperature: -60°C to +85°C
• Temperature humidity cycling: ≤ 0.05 dB
• Damp heat: ≤ 0.05 dB
– Key Features
• Low-loss, high-strength glass with 0.7 GPa proof stress
• Excellent macrobend performance minimizes installation stress
• Tight PMD specifications enable long-distance transmission
• Wide temperature operating range supports diverse field conditions
• Coating-cladding concentricity ≤ 10 µm for consistent performance
– Typical Applications
• Metropolitan area networks (MANs)
• Long-haul access networks
• Backbone infrastructure requiring extended reach
• CWDM and DWDM systems across C and L bands
– Compatibility & Integration
SMF-28e conforms to all major fiber standards and integrates directly with installed ITU-T G.652 networks without transition components.
