The Corning SMF-28 is a G.652-compliant single-mode optical fiber engineered for long-distance telecommunications, DWDM systems, and sensor network deployments. This 10 km spool delivers low attenuation across C and L bands with minimal chromatic dispersion, making it suitable for both terrestrial and submarine cable applications requiring high fidelity signal transmission over extended distances.
Technical Specifications
Optical Characteristics
• Fiber Type: Single-Mode (G.652 A/B/C/D and G.654.C compliant)
• Core Diameter: 8.2 µm
• Cladding Diameter: 125 ± 1 µm
• Mode-Field Diameter: 9.2 ± 0.5 µm @ 1310 nm; 10.4 ± 0.5 µm @ 1550 nm
• Numerical Aperture: 0.13 to 0.14
• Cut-off Wavelength: ≤1260 nm
• Zero Dispersion Wavelength: 1300–1324 nm
• Dispersion @ 1550 nm: ≤18.0 ps/(nm•km)
• Dispersion @ 1625 nm: ≤22.0 ps/(nm•km)
• Attenuation @ 1310 nm: ≤0.32 dB/km
• Attenuation @ 1550 nm: ≤0.18 dB/km
• Attenuation @ 1625 nm: ≤0.20 dB/km
• PMD Link Design Value: ≤0.04 ps/√km
• Rayleigh Backscatter: −77 dB @ 1310 nm; −82 dB @ 1550 nm
• Macrobend Loss @ 32 mm mandrel (100 turns, 1550 nm): ≤0.03 dB
Geometric & Mechanical
• Coating Diameter: 245 ± 5 µm (Dual Acrylate)
• Coating-Cladding Concentricity: ≤12 µm
• Cladding Non-Circularity: ≤0.7%
• Minimum Fiber Curl Radius: ≥4.0 m
– Key Features
• Ultra-low attenuation across 1310 nm and 1550 nm windows enables extended span lengths
• Minimal chromatic dispersion near 1300 nm zero-dispersion point optimizes DWDM performance
• High mechanical reliability with consistent cladding geometry and tight coating concentricity
• Environmental stability through dual-acrylate coating protection
• G.652/G.654.C compliance ensures interoperability with installed network infrastructure
– Typical Applications
• Long-haul terrestrial and submarine optical transport
• Dense wavelength division multiplexing (DWDM) systems
• Fiber-to-the-x (FTTx) infrastructure
• Distributed fiber optic sensing networks
• Telecom backbone and metro ring deployments
– Compatibility & Integration
SMF-28 integrates directly into systems designed for G.652 single-mode fiber. Mechanical splice and fusion splice compatibility is standard across legacy and modern optical termination equipment. The 10 km length accommodates large-scale network builds and field testing with minimal splicing requirements.
