Corning SMF-28 single-mode optical fiber delivers low-loss, long-distance transmission across 25,000 meters (25 km) of production-grade fiber. This industry-standard product minimizes signal degradation through carefully controlled dispersion and attenuation characteristics, enabling reliable performance in telecommunications, data networking, and research systems requiring signal integrity over extended spans.
Technical Specifications
• Fiber Type: Single-mode (SMF)
• Length: 25,000 m (25 km)
• Core Diameter: 9.2 µm nominal
• Cladding Diameter: 125 µm
• Coating Diameter: 245 µm nominal
• Cladding Non-Circularity: ≤1.0%
• Cut-off Wavelength (λc): 1260 nm maximum
• Zero Dispersion Wavelength (λ0): 1312 nm nominal
• Mode Field Diameter at 1310 nm: 9.0 µm ± 0.4 µm
• Mode Field Diameter at 1550 nm: 10.4 µm ± 0.5 µm
• Attenuation at 1310 nm: ≤0.36 dB/km
• Attenuation at 1550 nm: ≤0.22 dB/km
• Dispersion at 1310 nm: ≤3.5 ps/(nm·km)
• Dispersion at 1550 nm: -3.5 ps/(nm·km) nominal
• Proof Test Level: ≥100 kpsi (≥0.7 GPa)
• Operating Wavelength Range: 1260 nm – 1625 nm
• Operating Temperature: -40 °C to +85 °C
• Storage Temperature: -40 °C to +85 °C
– Key Features
• Macrobending loss performance: ≤0.10 dB at 1550 nm (1 turn, 10 mm diameter); ≤0.30 dB at 1625 nm
• Microbending-optimized design minimizes sensitivity to environmental stress
• Meets TIA-598-C and IEC 60794-1-2 standards for single-mode fiber geometrics
• Proof-tested fiber ensures mechanical reliability under installation conditions
– Typical Applications
• Long-haul telecommunications backbone networks
• Metropolitan area network (MAN) interconnects
• Fiber-to-the-home (FTTH) infrastructure
• Data center interconnect (DCI) systems
• High-speed digital transmission
• Scientific research installations
– Compatibility & Integration
SMF-28 operates across the C-band (1530–1565 nm) and L-band (1565–1625 nm) with proven performance in dense wavelength-division multiplexing (DWDM) systems. Compatibility depends on proper connector/splice termination and adherence to installation tension guidelines during cable deployment.
