The Corning SMF-28e is an enhanced single-mode optical fiber supplied in 50 km spools for metropolitan, access, and long-haul network deployments. This 9 µm core / 125 µm cladding fiber delivers ultra-low attenuation across C and L bands while maintaining superior bend resistance and full spectrum operation from 1260 nm to 1625 nm. Dual acrylate coating with mechanical strippability and proven 100 kpsi proof stress ensures reliable field performance in demanding installations.
Technical Specifications
Optical Performance:
• Attenuation: 0.03 dB/km max at 1310 nm; 0.02 dB/km max at 1550 nm; ≤0.05 dB/km at 1550 nm; ≤0.03 dB/km at 1625 nm
• Mode-Field Diameter: 8.6 ± 0.4 µm at 1310 nm; 9.8 ± 0.5 µm at 1550 nm
• Chromatic Dispersion: ≤18.0 ps/(nm•km) at 1550 nm; ≤22.0 ps/(nm•km) at 1625 nm
• Zero Dispersion Wavelength: 1302–1322 nm range
• Zero Dispersion Slope: ≤0.089 ps/(nm²•km)
• Polarization Mode Dispersion Link Value: ≤0.06 ps/√km
• Cable Cutoff Wavelength: ≤1260 nm
• Numerical Aperture: 0.14
Physical Dimensions:
• Coating Diameter: 245 ± 5 µm (dual acrylate)
• Fiber Curl: 4.0 m radius of curvature
• Coating-Cladding Concentricity: ≤10 µm
• Spool Length: 50,000 meters (spliced lengths available on request)
– Key Features
• Water peak optimized for 1360–1460 nm operation
• Full spectrum capability spanning 1260–1625 nm
• Macrobend loss ≤0.03 dB across all tested mandrel configurations (32 mm single turn through 60 mm 100-turn)
• Mechanically strippable coating for field termination
• Meets ITU-T G.652.D, G.657 Table A, IEC 60793-2-50 Type B1, TIA/EIA 492-CAAB, and Telcordia GR-20
– Typical Applications
• Metropolitan and access networks
• High-speed transmission systems
• Fiber to the Home (FTTH)
• 5G infrastructure
• Enterprise backbone networks
• Long-haul routes
• CATV broadband distribution
– Compatibility & Integration
SMF-28e maintains backward compatibility with installed SMF-28 infrastructure while exceeding performance in bend-sensitive and high-bandwidth applications. Standard spool format integrates with conventional deployment equipment and splicing practices.
