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| Property | Parameter | Description |
|---|---|---|
| Product Name | G.657.A2 Bend-Insensitive Single-Mode Optical Fiber | Low bend loss single-mode fiber compliant with ITU-T G.657.A2 standard |
| Fiber Type | Single-Mode, Bend-Insensitive | Compatible with G.652.D; designed for tight-bend routing in FTTH/FTTx networks |
| Standard Compliance | ITU-T G.657.A2 / IEC 60793-2-50 Type B6a2 | Fully backward compatible with ITU-T G.652.D standard fibers |
| Core Diameter | 9.2 ± 0.4 µm | Nominal mode field diameter at 1310 nm: 8.6–9.5 µm |
| Cladding Diameter | 125.0 ± 0.7 µm | Standard 125 µm glass cladding for universal splice compatibility |
| Coating Diameter | 245 ± 5 µm (standard) / 200 ± 5 µm (reduced) | Dual-layer UV-acrylate coating; reduced coating available for high-density cables |
| Numerical Aperture | 0.20 ± 0.02 | Supports efficient light coupling and low splice loss |
| Attenuation | ≤ 0.35 dB/km @ 1310 nm; ≤ 0.20 dB/km @ 1550 nm | Low attenuation for long-distance signal transmission |
| Macrobend Loss (Key Parameter) | ≤ 0.1 dB/turn @ R=7.5 mm (1550 nm); ≤ 0.5 dB/turn @ R=7.5 mm (1625 nm) | Superior bend performance vs G.657.A1; suitable for bends down to 7.5 mm radius |
| Chromatic Dispersion | ≤ 18 ps/(nm·km) @ 1550 nm; Zero dispersion wavelength: 1300–1324 nm | Optimized for C-band and L-band transmission systems |
| Polarization Mode Dispersion | ≤ 0.2 ps/√km (link design value) | Suitable for high-speed transmission up to 10 Gbps and beyond |
| Proof Test Level | ≥ 100 kpsi (0.69 GPa) | Ensures mechanical reliability during installation and long-term deployment |
| Operating Temperature | -60°C to +85°C | Stable optical performance across full temperature range per IEC 60794-1-2 |
| Application | FTTH drop cables, indoor wiring, MDU installations, patch cords, tight-buffer cables | Ideal for last-mile access networks requiring tight bends in conduits and ducts |
| Certification | RoHS compliant; TIA-568.3-D; Telcordia GR-20-CORE | Meets international telecom and environmental compliance requirements |
| Packaging | Supplied on reels: 2.5 km, 5 km, 10 km, 25 km standard lengths | Custom reel lengths available; labeled with fiber type, length, and lot number |
| MOQ | 1 reel (minimum 2.5 km) | OEM and bulk orders accepted; custom lengths negotiable for large projects |
Initial shipment had documentation gap — resolved promptly by supplier
We ordered 20,000 meters of G.657.A2 fiber for a regional FTTH drop cable project in Queensland. The fiber itself performed correctly — attenuation at 1310 nm averaged 0.34 dB/km and macrobend loss at R=7.5 mm was within ITU-T G.657.A2 limits. However, the initial shipment arrived without the IEC 60793-1-30 proof test stress certificates our client required for compliance sign-off. After raising the issue, the supplier provided the full documentation package within 48 hours and followed up with a process improvement note. Problem was resolved and the project proceeded on time. Would consider ordering again with documentation confirmed upfront.
We ordered 20,000 meters of G.657.A2 fiber for a regional FTTH drop cable project in Queensland. The fiber itself performed correctly — attenuation at 1310 nm averaged 0.34 dB/km and macrobend loss at R=7.5 mm was within ITU-T G.657.A2 limits. However, the initial shipment arrived without the IEC 60793-1-30 proof test stress certificates our client required for compliance sign-off. After raising the issue, the supplier provided the full documentation package within 48 hours and followed up with a process improvement note. Problem was resolved and the project proceeded on time. Would consider ordering again with documentation confirmed upfront.
