Corning MetroCor Optical Bare Fiber is a non-zero dispersion-shifted fiber (NZDSF) engineered for high-capacity metropolitan and regional network transmission. The 543 km fiber operates across the EDFA window with negative dispersion in the C-band and L-band, enabling extended transmission distances and compatibility with cost-effective directly modulated lasers. This architecture reduces overall system costs by minimizing the need for dispersion compensation modules and O-E-O conversions.
Technical Specifications
Optical Characteristics:
• Fiber Type: Non-Zero Dispersion-Shifted Fiber (NZDSF)
• Dispersion: Negative across operational bands
– C-band average: Approximately -8 ps/nm/km
– L-band average: Approximately -3 ps/nm/km
– Total (1530–1605 nm): -10.0 to -1.0 ps/(nm•km)
– Zero dispersion wavelength: 1630–1640 nm
• Attenuation at 1310 nm: ≤0.50 dB/km
• Attenuation at 1550 nm: ≤0.25 dB/km
• Attenuation at 1605 nm: ≤0.25 dB/km
• Water peak attenuation (1383±3 nm): ≤0.40 dB/km
• Polarization Mode Dispersion (PMD) link value: ≤0.1 ps/√km
• Maximum individual fiber PMD: ≤0.2 ps/√km
• Mode-Field Diameter at 1550 nm: 7.60–8.60 µm
• Cable cutoff wavelength: ≤1260 nm
• Point discontinuity: <0.10 dB at 1310 nm and 1550 nm
– Key Features
• Supports 2.5 Gbps and 10 Gbps transmission rates
• Low dispersion enables dense WDM deployment across C-band and L-band
• Compatibility with DM-DFB lasers eliminates expensive laser choices
• Extended propagation distance—eye diagram remains open after 120 km at 10 Gbps
• 543 km fiber length in single reel
– Typical Applications
• DWDM metropolitan and regional backbone networks
• High-data-rate long-haul transmission requiring minimal dispersion compensation
• Cost-optimized systems using directly modulated laser sources
– Compatibility & Integration
MetroCor integrates directly into EDFA-based systems without requiring O-E-O regeneration or external dispersion compensation over extended distances, making it suitable for operators seeking capital expenditure reduction in multi-span network deployments.
