The CORNING SMF-28e+ is a single-mode optical fiber manufactured to ITU-T G.652.D standards for telecommunications and data network deployment. This 20 km spool delivers optimized performance across broad wavelength ranges, including the water-peak region, with exceptionally low attenuation and controlled dispersion characteristics. The fiber combines tight geometrical tolerances, high tensile strength, and superior spliceability for applications spanning metro access to long-haul transmission systems.
Technical Specifications
Optical Performance
• Core diameter: 8.2 µm
• Cladding diameter: 125.0 ± 0.7 µm
• Mode field diameter at 1310 nm: 9.2 ± 0.4 µm; at 1550 nm: 10.4 ± 0.5 µm
• Numerical aperture: 0.14
• Cut-off wavelength: ≤ 1260 nm
• Zero dispersion wavelength: 1317 nm (range: 1304–1324 nm)
• Zero dispersion slope: 0.088 ps/(nm²•km)
• Attenuation at 1310 nm: 0.272 dB/km (typical); at 1550 nm: 0.158 dB/km (typical); at 1625 nm: ≤ 0.23 dB/km
• Dispersion at 1550 nm: ≤ 18.0 ps/(nm•km); at 1625 nm: ≤ 22.0 ps/(nm•km)
• Polarization mode dispersion (PMD): ≤ 0.04 ps/√km (link design value); ≤ 0.1 ps/√km (maximum individual fiber)
• Macrobend loss at 1550 nm (32 mm mandrel, 100 turns): ≤ 0.03 dB
• Rayleigh backscatter at 1310 nm: -77 dB; at 1550 nm: -82 dB (1 ns pulse width)
• SBS threshold: 3 dB improvement over standard single-mode fiber
Dimensional & Mechanical
• Coating diameter: 242 ± 5 µm
• Core-cladding concentricity: ≤ 0.5 µm
• Cladding non-circularity: ≤ 0.7%
• Fiber curl: ≥ 4.0 m radius of curvature
• Proof test: ≥ 100 kpsi (0.69 GPa) over full spool length
• Spool length: 20,000 m (20 km)
– Key Features
• Full-spectrum performance optimized across C, L, and S bands
• Water-peak suppression for enhanced 1383 nm transmission
• Low PMD design for high-speed, long-distance applications
• Exceptional core-cladding concentricity for superior splice loss performance
• Proven geometrical consistency ensures compatibility with existing networks
– Typical Applications
• Metro and access network infrastructure
• Long-haul terrestrial and submarine routes
• High-speed DWDM systems
• Legacy and transmission systems
– Compatibility & Integration
ITU-T G.652.D compliance ensures interoperability with standard single-mode infrastructure, termination equipment, and splicing methodologies across deployed networks.
