Introduction
In today’s high-speed communication networks, every connection matters. A stable and low-loss link ensures the reliability of data transmission and the efficiency of your entire optical system. The Single Mode Duplex Patch Cord, manufactured by Shining Fiber, is engineered to meet the most demanding requirements of modern optical networks. Designed for telecom, FTTH, and data center applications, this patch cord provides exceptional optical performance, minimal signal loss, and long-distance transmission capability.
As a trusted fiber optic patch cord manufacturer and supplier, Shining Fiber specializes in providing comprehensive fiber connection solutions, including patch cords, PLC splitters, distribution boxes, and patch panels. Our single mode duplex patch cords are widely used by system integrators, network operators, and wholesalers worldwide.
what Is a Single Mode Duplex Patch Cord?
A single mode duplex patch cord consists of two single mode fibers within one cable jacket, allowing simultaneous bidirectional data transmission — one fiber for transmitting and one for receiving. It is typically used to connect transceivers, patch panels, and optical distribution frames (ODFs) in long-distance or high-bandwidth applications.
Unlike multimode patch cords, single mode duplex patch cords are optimized for long-distance communication, using G.652D, G.657A1, or G.657A2 G.657B3 fibers that maintain signal integrity over kilometers of cable length. This makes them the preferred choice for telecommunication carriers, ISPs, data centers, and FTTH networks.
Key Features
Ultra-Low Insertion Loss
Each connector is precisely polished and inspected to ensure insertion loss ≤ 0.3 dB, providing reliable, high-performance connections.Excellent Return Loss
Available in UPC (≥ 50 dB) and APC (≥ 60 dB) types, ensuring minimal signal reflection for stable network operation.High Mechanical Strength
Built with reinforced Kevlar yarn and durable outer jackets (PVC or LSZH), the cable can withstand bending, pulling, and environmental stress.Connector Versatility
Offered with LC, SC, FC, or ST connectors to suit various optical systems, test instruments, and patch panels.100% Factory Tested
Every patch cord undergoes strict testing for insertion loss, return loss, geometry, and visual inspection before shipment.Customizable Length and Jacket Type
Available in 1m, 2m, 3m, 5m, or custom lengths. Jacket options include PVC, LSZH, or Armored designs for indoor or outdoor deployment.
Technical Specifications
| Parameter | Specification |
|---|---|
| Fiber Type | Single Mode (OS2 / G.657A1 / G.657A2 optional) |
| Connector Type | LC/UPC, LC/APC, SC/UPC, SC/APC, FC, ST |
| Polishing Type | UPC or APC |
| Fiber Count | Duplex |
| Cable Diameter | 2.0mm / 3.0mm |
| Insertion Loss | ≤ 0.3 dB |
| Return Loss | ≥ 50 dB (UPC) / ≥ 60 dB (APC) |
| Durability | 500 mating cycles |
| Operating Temperature | -40°C to +85°C |
| Storage Temperature | -45°C to +85°C |
| Jacket Material | PVC / LSZH / Armored (optional) |
| Cable Color | Yellow (standard), other colors optional |
| Minimum Bending Radius | 10x cable diameter |
| Standard Compliance | IEC 61754, GR-326-Core, RoHS, REACH |
Applications
FTTH (Fiber to the Home) networks for last-mile connections
FTTA (Fiber to the Antenna) for 5G base station connectivity
Telecom central office cabling
Data center interconnections and rack patching
Optical distribution frames (ODFs) and patch panels
PLC splitter and distribution box connections
Test equipment and optical monitoring systems
Structure and Design
A single mode duplex patch cord typically includes the following components:
Core: Made of high-purity glass for precise light transmission.
Cladding: A layer surrounding the core to contain light within the fiber.
Strength Member: Kevlar (aramid yarn) enhances tensile strength.
Outer Jacket: Provides environmental protection and flexibility.
Connector Housing: High-precision ferrule ensures perfect alignment and minimum insertion loss.
For applications requiring higher protection — such as outdoor, industrial, or military networks — armored single mode duplex patch cords are also available. These include stainless steel or aluminum armor under the jacket to prevent rodent bites and mechanical damage.
Advantages of Single Mode Duplex Patch Cord
1. Long-Distance Transmission
Single mode fibers have a small core diameter (typically 9μm), allowing signals to travel up to 40 km or more without significant loss, making them ideal for telecom backbones and long-haul networks.
2. High Bandwidth
The duplex configuration supports simultaneous two-way data transfer, doubling communication efficiency and reducing latency in enterprise and carrier networks.
3. Stable Optical Performance
The tight manufacturing tolerance of Shining Fiber ensures consistent quality — every patch cord provides low loss, stable return, and reliable mechanical performance.
4. Compatibility
Fully compatible with fiber optic distribution boxes, PLC splitters, and patch panels, allowing easy deployment in FTTH and FTTX systems.
5. Environmental Resistance
Available in LSZH jackets for indoor use (flame retardant, non-toxic smoke) or armored jackets for outdoor protection against crushing and moisture.
Testing & Quality Control
All Shining Fiber patch cords undergo rigorous testing and inspection before delivery:
Insertion Loss Test – ensures signal strength and stability.
Return Loss Test – checks reflection levels at connector interfaces.
Interferometer End-Face Geometry Test – ensures correct ferrule curvature.
Visual Inspection (400x Microscope) – verifies connector surface cleanliness.
Temperature Cycling & Aging Test – ensures long-term reliability under extreme environments.
Customization Options
At Shining Fiber, we understand that every network project is unique. We offer a wide range of customization options to match specific customer needs:
Connector Type: LC, SC, FC, ST, MPO/MTP
Polishing Type: UPC or APC
Cable Diameter: 2.0mm / 3.0mm
Jacket Type: PVC, LSZH, or armored
Cable Length: 0.5m–100m (custom available)
Color: Yellow (standard), aqua, blue, or others
Labeling & Packaging: OEM branding, barcodes, or custom logo
We also provide OEM and ODM services for distributors and integrators who want private-label fiber optic products.
Integration with Other Fiber Optic Products
A complete fiber optic system involves multiple interconnected components. The single mode duplex patch cord works seamlessly with the following:
PLC Splitters: Used for optical signal distribution in FTTH networks.
Fiber Distribution Boxes: Protect and organize optical connections.
Patch Panels: Provide centralized cable management for data centers.
Pigtails and Adapters: Used for splicing and interface conversion.
Shining Fiber provides a full range of these fiber optic accessories, offering customers a one-stop solution for fiber connection, fiber link, and optical communication projects.
Packaging & Delivery
Each patch cord is carefully coiled, sealed in an anti-static PE bag, and labeled with product specifications. Bulk orders are packed in export cartons with foam protection to prevent damage during transport.
We support air freight, sea freight, and courier delivery (DHL, FedEx, UPS) depending on customer requirements.
Lead time: typically 3–7 working days for standard orders and 10–15 days for customized products.
Why Choose Shining Fiber
Professional Manufacturer: 15+ years of experience in fiber optic production.
Complete Product Range: From patch cords to PLC splitters and patch panels.
Strict Quality Control: ISO9001 and CE certified manufacturing process.
Competitive Prices: Direct factory supply without intermediaries.
Global Export Experience: Serving telecom and FTTX projects in Asia, Latin America, and Europe.
Our mission is to provide high-quality fiber optic connectivity solutions that help partners build faster, more stable, and more intelligent communication networks.
Conclusion
The Single Mode Duplex Patch Cord is the backbone of any high-speed optical network. Whether you are building a new FTTH project, upgrading data center infrastructure, or integrating optical devices, Shining Fiber provides the most dependable and customizable patch cord solutions on the market.
Choose Shining Fiber — your trusted fiber optic patch cord manufacturer — for superior connectivity, precision engineering, and global service support.
