| Property | Parameter | Description |
|---|---|---|
| Product Name | Bend Insensitive Fiber for Telecom Network | Single-mode optical fiber engineered for low bend loss in telecom infrastructure deployments |
| Fiber Type / Grade | G.657.A1 / G.657.A2 / G.657.B3 | ITU-T compliant bend-insensitive single-mode fiber; equivalent to IEC 60793-2-50 type B-657 |
| Standard Compliance | ITU-T G.657, IEC 60793-2-50, TIA-492AAAD | Fully backward compatible with ITU-T G.652.D for seamless network integration |
| Core / Cladding Diameter | Core: 8.6–9.5 µm / Cladding: 125.0 ± 0.7 µm | Trench-assisted or hole-assisted index profile for enhanced bend performance |
| Coating Diameter | 245 ± 10 µm (standard) / 200 ± 5 µm (reduced) | Dual-layer UV-cured acrylate coating for mechanical protection and handling ease |
| Attenuation | ≤ 0.20 dB/km @ 1550 nm; ≤ 0.40 dB/km @ 1310 nm | Low attenuation ensures long-distance signal integrity per ITU-T G.657 requirements |
| Macrobend Loss (G.657.A2) | ≤ 0.03 dB/turn @ R=15 mm, 1550 nm; ≤ 0.1 dB/turn @ R=10 mm, 1550 nm | Significantly reduced bend-induced loss for tight-radius routing in FTTH/FTTx applications |
| Macrobend Loss (G.657.B3) | ≤ 0.03 dB/turn @ R=7.5 mm, 1550 nm | Ultra-low bend loss for extreme bend radius scenarios in dense indoor cabling |
| Chromatic Dispersion | Zero Dispersion Wavelength: 1300–1324 nm; ≤ 18 ps/(nm·km) @ 1550 nm | Compatible with G.652.D dispersion specifications for WDM and broadband transmission |
| Polarization Mode Dispersion | PMD Coefficient ≤ 0.1 ps/√km (link design value) | Supports high-speed transmission up to 100 Gbps and beyond |
| Tensile Strength (Proof Test) | ≥ 100 kpsi (0.69 GPa) | Standard proof test level ensuring mechanical reliability during installation and service life |
| Operating Temperature | -60°C to +85°C | Suitable for outdoor, indoor, and aerial telecom network environments |
| Cable Length / Packaging | Standard: 2.0 km, 4.0 km, 6.25 km per reel; custom lengths available | Wound on wooden or plastic reels; moisture-resistant wrapping for transport and storage |
| Application | FTTH, FTTx, MDU wiring, indoor/outdoor drop cables, patch cords, access networks | Ideal for last-mile connectivity, building riser cables, and tight-space telecom installations |
| Certification | RoHS, REACH, UL Listed (where applicable), CE | Meets international environmental and safety compliance standards for global telecom markets |
| MOQ | 10 reels (negotiable for large-volume telecom projects) | OEM/ODM available; custom fiber count, coating color, and reel length upon request |
Ordered 25,000 meters of G.657.A1 bend insensitive fiber for an FTTH pilot program. Original delivery window was 15 days but shipment arrived on day 22 due to logistics issues – caused scheduling pressure on our installation team. After raising the concern, the supplier's customer service team communicated proactively and provided compensation on freight for the next order. Fiber itself tested well: attenuation 0.20 dB/km at 1550 nm, macrobend loss compliant with G.657.A1 at 15 mm radius. Problem was resolved professionally. Willing to order again with confirmed lead time.


