CORNING SMF-28e+ SINGLE MODE FIBER 4600m / 5km Spool

The CORNING SMF-28e+ is an enhanced single-mode optical fiber engineered for telecommunications in metropolitan and access networks. This 4600 m / 5 km spool delivers full-spectrum transmission across the C, L, and O bands with significantly reduced water-peak attenuation, enabling greater network capacity and flexibility. The fiber maintains backward compatibility with SMF-28® infrastructure while meeting the latest ITU-T G.652.D, IEC 60793-2-50, and Telcordia GR-20 standards.

Technical Specifications

• Core/Cladding Diameter: 9 µm / 125 µm


• Mode Field Diameter: 9.2 ± 0.4 µm @ 1310 nm; 10.4 ± 0.5 µm @ 1550 nm


• Attenuation: ≤ 0.35 dB/km @ 1310 nm; ≤ 0.24 dB/km @ 1490 nm; ≤ 0.20 dB/km @ 1550 nm; ≤ 0.23 dB/km @ 1625 nm


• Chromatic Dispersion: ≤ 18.0 ps/(nm·km) @ 1550 nm; ≤ 22.0 ps/(nm·km) @ 1625 nm


• Zero Dispersion Wavelength: 1304–1324 nm


• PMD Link Design Value: ≤ 0.06 ps/√km


• Macrobend Loss: ≤ 0.03 dB @ 32 mm mandrel (1 turn, 1550 nm); ≤ 0.03 dB @ 50 mm and 60 mm mandrels (100 turns, 1310/1550/1625 nm)


• Numerical Aperture: 0.14 NA


• Tensile Proof Stress: ≥ 100 kpsi or ≥ 200 kpsi

Key Features

• Improved macrobend performance: ≤ 0.03 dB vs. previous 0.05 dB specification


• Enhanced water-peak suppression enables C and L band operation without attenuation penalties


• PMD specifications support high-speed 10 Gb/s and 40 Gb/s transmission designs


• Operating temperature range -60°C to +85°C with ≤ 0.05 dB change under damp heat and temperature cycling


• Rayleigh backscatter coefficient: -77 dB @ 1310 nm, -82 dB @ 1550 nm

Typical Applications

• Metropolitan and access network deployments


• CWDM system implementations


• Long-haul transmission links


• Interoffice and backbone cabling

Compatibility & Integration Compliant with ITU-T G.652 (Categories A, B, C, D), IEC 60793-2-50 Type B1.1 and B1.3, TIA/EIA 492CAAB, Telcordia GR-20-CORE, and ISO 11801 OS2. Direct compatibility with installed SMF-28® infrastructure.