Product Overview
Winner low-dispersion single-mode bare optical fiber is manufactured to meet stringent ITU-T standards—including G.652.D for conventional single-mode applications and G.655 for non-zero dispersion-shifted fiber (NZ-DSF) deployments requiring ultra-low chromatic dispersion in the C+L bands. With a standard 9/125 μm core/cladding geometry and 250 μm UV-cured dual acrylate coating, the fiber delivers exceptional geometric precision and optical performance across the full operating spectrum (1260–1625 nm).
Chromatic dispersion is tightly controlled to <18 ps/(nm·km) at 1550 nm and <22 ps/(nm·km) at 1625 nm, enabling uncompensated 10G transmission up to 80 km and supporting coherent 100G/400G systems with reduced digital signal processing burden. The fiber exhibits ultra-low attenuation (≤0.20 dB/km @1550 nm, ≤0.34 dB/km @1383 nm), confirming its low water peak (LWP) compliance per ITU-T G.652.D. Combined with core-cladding concentricity ≤0.6 μm and cladding non-circularity ≤1.0%, it ensures low splice loss and high connector repeatability. The cutoff wavelength of ≤1260 nm guarantees true single-mode operation, while a macrobend radius of ≥4 m provides robustness in dense routing environments.
Technical Specifications
| Brand Name | Winner |
| Model Number | G.652.D (standard); G.655, G.654.E, G.657.A1/A2 available on request |
| Fiber Type | Single-Mode Bare Optical Fiber |
| Core Diameter | 9 μm |
| Cladding Diameter | 125 ± 0.7 μm |
| Coating Diameter | 250 μm |
| Cladding Non-Circularity | ≤1.0% |
| Core/Cladding Concentricity Error | ≤0.6 μm |
| Cut-off Wavelength (λc) | ≤1260 nm |
| Chromatic Dispersion | <18 ps/(nm·km) @1550 nm
<22 ps/(nm·km) @1625 nm |
| Attenuation | ≤0.33 dB/km @1310 nm
≤0.34 dB/km @1383 nm
≤0.20 dB/km @1550 nm
≤0.24 dB/km @1625 nm |
| Macrobend Radius | ≥4 m |
| Operating Temperature Range | -40°C to +85°C |
Applications
- Long-haul and submarine communication systems requiring precise dispersion management (G.655 variant)
- Metro and regional networks deploying 10G/25G/100G DWDM without dispersion compensation modules
- Data center interconnects (DCI) up to 80 km with direct-detect or coherent optics
- 5G mobile xHaul (fronthaul/midhaul/backhaul) demanding low latency and high spectral efficiency
- Industrial and utility networks operating in extreme temperature ranges with space-constrained pathways
Standards & Compatibility
Winner low-dispersion fiber complies with ITU-T G.652.D, G.655, IEC 60793-2-50, and Telcordia GR-20-CORE. It is fully compatible with standard single-mode transceivers (e.g., 10GBASE-LR, 100GBASE-ER4), fusion splicers, and APC/UPC connectors. For bend-critical indoor deployments, G.657.A2 variants offer enhanced macrobend performance down to 7.5 mm radius while maintaining low dispersion characteristics.
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