The LUCENT SMF-28 SPECIAL BARE SINGLE MODE FIBER is a 25 km single-mode optical fiber engineered for telecommunications and data communications. It delivers optimized performance at 1310 nm and operates effectively across the 1550 nm wavelength region with TDM and WDM systems. The fiber meets TIA/EIA Class IVA, IEC 60793-2-50 B1.1, and ITU G.652.B standards.
Technical Specifications
Fiber Geometry
• Core diameter: 8.2 µm
• Cladding diameter: 125.0 ± 0.7 µm
• Mode field diameter at 1310 nm: 9.2 ± 0.4 µm
• Mode field diameter at 1550 nm: 10.4 ± 0.5 µm
• Numerical aperture: 0.14
• Fiber cutoff wavelength: ≤ 1260 nm
Optical Performance
• Zero dispersion wavelength: 1313 nm
• Zero dispersion slope: 0.086 ps/(nm²•km)
• Attenuation at 1310 nm: ≤ 0.35 dB/km
• Attenuation at 1550 nm: ≤ 0.20 dB/km
• Attenuation at 1383 ± 3 nm: ≤ 0.35 dB/km
• Dispersion at 1550 nm: ≤ 18.0 ps/(nm•km)
• Dispersion at 1625 nm: ≤ 22.0 ps/(nm•km)
• Polarization mode dispersion (individual fiber): ≤ 0.2 ps/√km
• Polarization mode dispersion (link design value): ≤ 0.06 ps/√km
Environmental & Mechanical
• Coating: Mechanically strippable dual acrylate
• Operating temperature range: −60°C to +85°C
• Proof test tensile stress: ≥ 100 kpsi (0.69 GPa)
• Macrobend loss at 1550 nm (100 turns, 32 mm mandrel): ≤ 0.1 dB
• Macrobend loss at 1310 nm (100 turns, 50 mm mandrel): ≤ 0.05 dB
• Point discontinuity: ≤ 0.10 dB at 1310 nm or 1550 nm
• Supplied length: 25 km
– Key Features
• Dual-acrylate coating provides mechanical strippability for field termination
• Low attenuation across C and L bands enables extended reach systems
• PMD specifications support high-speed digital transmission
• Full spool length proof-tested to 100 kpsi ensures fiber reliability
• Wide operating temperature range accommodates harsh deployment environments
– Typical Applications
• Long-haul terrestrial telecommunications networks
• Metropolitan area networks (MAN) with TDM/WDM multiplexing
• Data center interconnect over moderate distances
• DWDM system backhaul and trunk routes
– Compatibility & Integration
Complies with TIA/EIA Class IVA, IEC 60793-2-50 B1.1, and ITU G.652.B fiber specifications. Compatible with standard connectors, fusion splicers, and test equipment designed for single-mode operation.
