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Duplex Single-Mode Fiber Cable Supplier & Manufacturer
China
Supplier's customization ability
- Drawing-based customization
- Sample-based customization
- Full customization
Minimum order quantity: 1 kilometers
Shipping total: To be negotiated
- Lead time:
- confirmed with the quotation
- Packaging:
- standard export packing
- Samples:
- available on request
Product details
Technical Specifications of Duplex Single-Mode Fiber
| 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 |
Duplex Single-Mode Fiber Cable Supplier & Manufacturer
Duplex single-mode fiber cable stands as one of the most critical transmission mediums in modern optical communication infrastructure, delivering unmatched signal integrity across long-haul telecom networks, enterprise backbone systems, and high-density data center interconnects. As global bandwidth demands continue to surge, this dual-strand SM fiber solution has become the go-to choice for carriers, ISPs, and network integrators who require simultaneous bidirectional data transmission with minimal signal loss. With a 9/125 µm core-to-cladding structure, duplex single-mode fiber supports ultra-low attenuation over distances exceeding 100 km, making it indispensable for FTTH deployments, metro Ethernet rings, and cross-datacenter links. Our manufacturing facilities produce duplex SM fiber cables that fully comply with ITU-T G.652D and G.657 standards, serving global customers across North America, Europe, Southeast Asia, and the Middle East with consistent quality, competitive pricing, and reliable lead times.
What is Duplex Single-Mode Fiber?
Duplex single-mode fiber is a two-strand optical cable configuration built on 9/125 µm single-mode fiber, enabling full-duplex communication through separate transmit and receive paths within a single jacket assembly. Conforming to ITU-T G.652D and IEC 60793-2-50 standards, this SM fiber cable type features a tight-buffered or loose-tube construction with a zipcord or round dual-jacket design, making it ideal for patch cord applications, structured cabling, and equipment-to-equipment connectivity in both indoor and outdoor environments.
Duplex Single-Mode Fiber Manufacturing and Production Process
Our duplex single-mode fiber cables are manufactured in ISO 9001:2015-certified cleanroom facilities where precision is enforced at every production stage. The process begins with preform fabrication using Modified Chemical Vapor Deposition (MCVD) or Outside Vapor Deposition (OVD), followed by fiber drawing at controlled temperatures exceeding 2,000°C. Each 9/125 µm fiber strand undergoes UV-cured acrylate coating, tight buffering to 900 µm, and then dual-strand assembly into a zipcord or round duplex jacket. Rigorous 100% end-of-line testing for attenuation, geometry, and tensile strength ensures RoHS and REACH compliance before shipment.
Duplex Single-Mode Fiber Technical Specifications
Our duplex SM fiber cables deliver industry-leading optical and mechanical performance. Core/cladding diameter: 9/125 µm ± 0.5 µm. Attenuation at 1310 nm: ≤ 0.35 dB/km; at 1550 nm: ≤ 0.20 dB/km. Chromatic Dispersion at 1550 nm: ≤ 18 ps/(nm·km). Numerical Aperture: 0.13 ± 0.015. Cable outer diameter (zipcord duplex): 2 × 2.0 mm or 2 × 3.0 mm. Operating temperature range: −20°C to +70°C. Minimum bend radius: 30 mm (long-term), 15 mm (short-term). Tensile load: ≤ 100 N (short-term). Jacket material: LSZH or PVC, UL listed and RoHS compliant.
Get a Competitive Quote for Duplex Single-Mode Fiber
Whether you are sourcing duplex single-mode fiber cable for a large-scale FTTH rollout, data center build-out, or telecom infrastructure upgrade, we offer flexible wholesale pricing, fast global shipping, and full certification documentation to support your procurement and project compliance requirements. Contact our team now for a tailored bulk order quote.
- 24/7 expert optical communication engineer support
- Full ITU-T, ISO, RoHS compliance guarantee for all batches
- Exclusive wholesale discounts for bulk telecom, FTTH and data center orders
- Complete technical data sheets and on-site deployment guidance included
Contact us today to get your free quote and full specification sheet within 24 hours!
