Corning Single Mode fiber SMF-28e Optical Fiber 20,000m / 20km

The Corning SMF-28e is a single-mode optical fiber specified at 20 km length, engineered for long-haul telecommunications and access network deployments. This ITU-T G.652.D compliant fiber operates across 1260 nm to 1625 nm, including the water peak region at 1383 nm, enabling higher transmission capacity without sacrificing signal integrity. Low attenuation across critical wavelengths (0.32 dB/km at 1310 nm, 0.22 dB/km at 1550 nm) and controlled dispersion characteristics support extended transmission distances. The fiber features a 9 µm core with 125 µm cladding, mode-field diameter of 9.2 µm at 1310 nm, and numerical aperture of 0.14. PMD performance reaches 0.06 ps/√km at the link design value, enabling coherent and high-speed digital modulation schemes. Macrobend loss remains ≤ 0.03 dB at 1550 nm under standard test conditions. Zero dispersion wavelength sits at 1304–1324 nm with dispersion slope ≤ 0.092 ps/(nm²·km), ensuring minimal chromatic distortion across the extended C and L bands. The fiber meets TIA/EIA 492-CAAB, Telcordia GR-20, ISO 11801 OS2, and IEC 60793-2-50 Type B1.3 standards.

– Technical Specifications

• Wavelength Range: 1260 nm to 1625 nm
• Core/Cladding Diameter: 9 µm / 125 µm
• Attenuation: 0.32 dB/km @ 1310 nm | 0.22 dB/km @ 1550 nm | 0.36 dB/km @ 1383 nm
• Dispersion: ≤ 18 ps/(nm·km) @ 1550 nm | ≤ 22 ps/(nm·km) @ 1625 nm
• Zero Dispersion Wavelength: 1304–1324 nm
• Dispersion Slope: ≤ 0.092 ps/(nm²·km)
• PMD Link Design Value: ≤ 0.06 ps/√km
• Mode-Field Diameter: 9.2 ± 0.4 µm @ 1310 nm
• Numerical Aperture: 0.14
• Macrobend Loss: ≤ 0.03 dB @ 1550 nm (50 turns, 32 mm mandrel)
• Cable Cutoff Wavelength: ≤ 1260 nm

– Key Features

• Water peak suppression enables 1383 nm operation for capacity expansion
• NexCor® technology delivers 3 dB SBS threshold improvement over standard single-mode fiber
• Dual-window operation with optimized low-loss performance in both C (1530–1565 nm) and L (1565–1625 nm) bands
• Extended PMD specifications support modulation formats

– Typical Applications

• Long-haul terrestrial and submarine transmission
• Metro and regional access networks
• Fiber-to-the-Home (FTTH) infrastructure
• Data center interconnect
• Legacy network compatibility and upgrades

– Compatibility & Integration

Fully compliant with ITU-T G.652.D, IEC 60793-2-50 Type B1.3, TIA/EIA 492-CAAB, Telcordia GR-20, and ISO 11801 OS2 standards.