Corning SMF-28 single-mode optical fiber delivers reliable long-distance data transmission in a 35 km bare fiber spool. Engineered to ITU-T G.652, TIA/EIA-492CAAA, and IEC 60793-2 standards, this fiber minimizes signal distortion while maintaining high bandwidth capacity across demanding telecom and network applications.
Technical Specifications
Optical Properties
• Core diameter: 8.2 µm
• Cladding diameter: 125 ± 1 µm
• Coating diameter: 245 ± 5 µm (dual acrylate CPC®)
• Mode field diameter: 9.2 ± 0.4 µm at 1310 nm; 10.4 ± 0.8 µm at 1550 nm
• Numerical aperture: 0.14
• Operating wavelength: 1310/1550 nm
• Cut-off wavelength: ≤ 1260 nm
Attenuation
• 1310 nm: ≤ 0.32 dB/km
• 1550 nm: ≤ 0.18 dB/km
• 1625 nm: ≤ 0.20 dB/km
• Water peak (1383 ± 3 nm): ≤ 2.1 dB/km
Dispersion
• Zero dispersion wavelength: 1302–1322 nm
• Zero dispersion slope: ≤ 0.092 ps/(nm²•km)
• Dispersion at 1550 nm: ≤ 18.0 ps/(nm•km)
• Dispersion at 1625 nm: ≤ 22.0 ps/(nm•km)
Polarization Mode Dispersion (PMD)
• Link design value: ≤ 0.04 ps/√km
• Maximum individual fiber PMD: ≤ 0.1 ps/√km
• Point discontinuity: ≤ 0.10 dB at 1310 nm or 1550 nm
Mechanical
• Proof stress: ≥ 100 kpsi (0.7 GN/m²) across entire fiber length
• Operating temperature: -60°C to +85°C
– Key Features
• 35,000 meter (35 km) spool length for extended reach installations
• Single-mode propagation ensures minimal modal dispersion
• Dual acrylate coating provides mechanical protection and environmental resistance
• Compliant with international telecom standards for long-haul applications
– Typical Applications
• Long-distance telecommunications networks
• Metropolitan and wide-area network backbones
• Cable television (CATV) distribution systems
• Data center interconnects requiring extended reach
– Compatibility & Integration
SMF-28 operates at standard C-band and L-band wavelengths, making it compatible with conventional single-mode components and systems operating at 1310 nm or 1550 nm.
