| Property | Parameter | Description |
|---|---|---|
| Product Name | Bend Insensitive Single-Mode Optical Fiber for FTTH | Low-bend-loss fiber designed for fiber-to-the-home access networks |
| Fiber Type | Single-Mode Bend Insensitive Fiber (BIF) | Equivalent to Corning ClearCurve, Draka BendBright, OFS AllWave Flex |
| Standard Compliance | ITU-T G.657.A1 / G.657.A2 / G.657.B3; IEC 60793-2-50 | Compliant with international FTTH deployment standards |
| Core Diameter | 8.6 ± 0.4 µm (G.657.A1/A2); 6.3 ± 0.5 µm (G.657.B3) | Optimized core for low-loss transmission and bend tolerance |
| Cladding Diameter | 125.0 ± 0.7 µm | Standard cladding for compatibility with connectors and splicing equipment |
| Coating Diameter | 245 ± 10 µm (dual-layer acrylate coating) | Dual-layer UV-cured acrylate for mechanical protection |
| Attenuation | ≤ 0.35 dB/km @ 1310 nm; ≤ 0.20 dB/km @ 1550 nm | Per ITU-T G.657 / IEC 60793-2-50 measurement method |
| Macrobend Loss (G.657.A2) | ≤ 0.1 dB/turn @ 15 mm radius, 1550 nm; ≤ 0.5 dB/turn @ 10 mm radius, 1550 nm | Significantly lower bend loss than standard G.652.D fiber |
| Macrobend Loss (G.657.B3) | ≤ 0.1 dB/turn @ 7.5 mm radius, 1550 nm | Suitable for extreme bending in tight indoor routing |
| Zero Dispersion Wavelength | 1300 nm – 1324 nm | Per ITU-T G.657 specification |
| Chromatic Dispersion | ≤ 18 ps/(nm·km) @ 1550 nm | Compatible with G.652.D dispersion characteristics |
| Fiber Length per Reel | Standard: 2.0 km, 4.0 km, 6.25 km per reel; custom lengths available | Wound on plastic or wooden reels per IEC 60794-1 packaging standard |
| Operating Temperature | -60°C to +85°C | Suitable for indoor, outdoor, and aerial FTTH installations |
| Application | FTTH/FTTB/FTTX drop cables, indoor wiring, patch cords, pigtails, tight-buffer cables | Ideal for last-mile access network deployments requiring tight routing |
| Certification | RoHS, REACH, UL, CE, ISO 9001:2015 | Meets environmental and quality management system requirements |
| Packaging | Plastic reels with moisture-proof wrapping; export-grade wooden crates available | Labeled with fiber type, length, attenuation, and batch number |
| MOQ | 50 km per order (mixed reel lengths acceptable) | OEM and custom specifications available upon request |
Our first 5,000 km order of G.657A2 fiber showed coating outer diameter variation slightly outside the 245 µm ± 5 µm spec on approximately 3% of reels, which caused intermittent feed issues on our automated stripping equipment. I raised this with the technical team and they responded within four hours, issued replacement reels within ten days, and provided updated inline QC data confirming the root cause was corrected in their drawing tower monitoring process. Subsequent reels have been fully within spec. The responsiveness in resolving the issue was genuinely good. Cautiously optimistic for future orders.


