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| Property | Parameter | Description |
|---|---|---|
| Optical Fiber Product Name | Duplex Single-Mode Fiber | Two-strand parallel single-mode optical fiber cable for bidirectional transmission |
| Fiber Grade & ITU-T Classification | ITU-T G.652D / G.657A1 | Standard single-mode fiber compliant with ITU-T G.652D; bend-insensitive variant available per G.657A1 |
| Core & Cladding Diameter Range | Core: 8.2 µm / Cladding: 125 ± 0.7 µm | Tight-tolerance core/cladding geometry ensures low splice loss and consistent optical performance |
| Attenuation Coefficient at 1310 nm | ≤ 0.35 dB/km | Measured per IEC 60793-1-40; suitable for short- to medium-haul transmission |
| Attenuation Coefficient at 1550 nm | ≤ 0.20 dB/km | Low loss at 1550 nm enables long-haul and DWDM network deployment |
| Macrobending Loss Performance | ≤ 0.10 dB at R = 30 mm (100 turns, 1550 nm) | Tested per IEC 60793-1-47; duplex jacket provides additional mechanical protection against bending |
| Chromatic Dispersion Coefficient | ≤ 18 ps/(nm·km) at 1550 nm; ≤ 3.5 ps/(nm·km) at 1310 nm | Zero-dispersion wavelength λ₀ between 1300–1324 nm per G.652D specification |
| Batch Qualification Rate | ≥ 99.5% | Each production batch undergoes 100% OTDR and attenuation screening before shipment |
| Manufacturing Environment Standards | ISO 9001:2015 / ISO 14001:2015 certified facility | Controlled cleanroom environment; temperature and humidity monitored throughout drawing and coating process |
| Core Raw Material Source | High-purity synthetic silica (SiO₂ ≥ 99.99%) | Preform manufactured via MCVD or OVD process; dopant-grade GeO₂ core for precise refractive index control |
| Packaging Specification | Duplex zipcord: 2 × 900 µm tight-buffered; outer jacket 1.6 mm × 3.0 mm or 2.0 mm × 4.0 mm | PVC or LSZH jacket options; spool lengths of 100 m, 500 m, 1000 m, or custom |
| Storage Conditions | Temperature: -20 °C to +60 °C; Relative Humidity: 10%–85% (non-condensing) | Store on original spool in dry, UV-protected environment; avoid compression loads on spool flanges |
| Valid Shelf Life | 25 years (under recommended storage conditions) | Coating integrity and optical parameters guaranteed for 25 years when stored per IEC 60794-1 guidelines |
| Application Scenarios | LAN/WAN patch cords, FTTH indoor drop cables, data center interconnects, CATV, telecom equipment pigtails | |
| Compliance & Certification | ITU-T G.652D, IEC 60793-2-50, RoHS 2011/65/EU, UL Listed (OFNR/OFNP), CE | Full compliance documentation and test reports available upon request |
| Minimum Order Quantity (MOQ) | 500 m (single spool) / 5,000 m (bulk order) | Custom lengths and connector termination (LC, SC, FC, ST) available for orders ≥ 1,000 m |
| Monthly Supply Capacity | 500,000 m / month | Scalable production capacity; lead time 7–15 business days for standard configurations |
Initial jacket inconsistency flagged — resolved promptly by supplier
Ordered 40,000 meters of duplex SM fiber in 2×3.0mm round LSZH jacket for a regional ISP expansion. Upon inspection, roughly 8% of reels showed minor outer diameter variation slightly outside the 3.0mm ±0.1mm tolerance. I flagged this to the supplier immediately. They acknowledged the issue within 12 hours, attributed it to a single production run, and shipped replacement reels within 10 days at no additional cost. Optical performance on all reels met ITU-T G.652D specs. The after-sales response was genuinely good. Cautious upgrade to 4 stars pending next order.
Ordered 40,000 meters of duplex SM fiber in 2×3.0mm round LSZH jacket for a regional ISP expansion. Upon inspection, roughly 8% of reels showed minor outer diameter variation slightly outside the 3.0mm ±0.1mm tolerance. I flagged this to the supplier immediately. They acknowledged the issue within 12 hours, attributed it to a single production run, and shipped replacement reels within 10 days at no additional cost. Optical performance on all reels met ITU-T G.652D specs. The after-sales response was genuinely good. Cautious upgrade to 4 stars pending next order.
