Product Detail
G.657.A1 Single Mode Bare Fiber Optic Cable – 50.4 km Reel
G.657.A1 Single Mode Bare Fiber is a high-performance bend-insensitive optical fiber designed for advanced optical communication applications. Manufactured according to ITU-T G.657.A1 standards, this fiber provides excellent bending resistance, low attenuation, and stable transmission performance. Supplied in a 50.4 km continuous reel format, it is suitable for optical cable manufacturing, fiber optic assemblies, FTTH networks, and various telecommunication infrastructure applications requiring reliable signal transmission and consistent fiber quality.
Core Features of Our Single Mode Bare Fiber
Bend-Insensitive Performance
Excellent bending resistance while maintaining stable optical transmission performance.
Low Optical Attenuation Performance
Optimized optical structure ensures reliable long-distance signal transmission.
Precision Fiber Manufacturing Process
Strict process control guarantees consistent fiber geometry and quality.
Wide Application Compatibility
Suitable for FTTH, cable manufacturing and telecommunication applications.
Product Specifications & Technical Data
Geometrical Characteristics
| Parameter | Specification | Unit |
|---|---|---|
| Cladding Diameter | 125.0 ± 1.0 | μm |
| Coating Diameter | 242 ± 7 | μm |
| Core-Cladding Concentricity Error (ECC) | ≤0.64 | μm |
| Cladding Non-Circularity | ≤1 | % |
| Coating Non-Circularity | ≤3 | % |
| Curl (Bending Radius) | ≤4 | m |
| Mode Field Diameter @1310 nm | 9.2 ± 0.4 | μm |
| Mode Field Diameter @1550 nm | 10.4 ± 0.5 | μm |
Optical Performance
| Parameter | Specification | Unit |
|---|---|---|
| Attenuation @1310 nm | ≤0.350 | dB/km |
| Attenuation @1550 nm | ≤0.210 | dB/km |
| Attenuation @1625 nm | ≤0.240 | dB/km |
| Cable Cutoff Wavelength | ≤1260 | nm |
| PMD | ≤0.2 | ps/√km |
Mechanical Performance
| Parameter | Specification | Unit |
|---|---|---|
| Proof Test | ≥1 | % |
| Tensile Strength | ≥9 | N |
| Tensile Strength | ≥100 | kpsi |
| Dynamic Fatigue Parameter (Nd) | 1≤Fmean≤5 | N |
| Peak Force Range | 1.3≤Fpeak≤8.9 | N |
| Coating Strip Force | ≥20 | N |
Bend Performance
| Test Condition | Maximum Additional Loss | Unit |
|---|---|---|
| 1 turn Φ32 mm @1550 nm | ≤0.05 | dB |
| 100 turns Φ50 mm @1310 nm & 1550 nm | ≤0.05 | dB |
| 100 turns Φ60 mm @1625 nm | ≤0.05 | dB |
Applications of Single Mode Bare Fiber
Fiber Optic Cable Manufacturing
Our bare fiber is widely used as a core material for manufacturing different types of optical cables. Its consistent geometry and excellent optical performance ensure reliable cable production and long-term transmission stability.
FTTH & Access Networks
With superior bend-insensitive characteristics, G.657.A1 fiber is suitable for compact installation environments and modern fiber access networks requiring flexible deployment and stable connectivity.
Data Center Connectivity
Designed for high-speed optical communication systems, our single mode bare fiber supports reliable signal transmission in data center and backbone network applications.
Fiber Optic Components
The fiber can be integrated into optical assemblies, connectors, and communication components, providing a dependable foundation for advanced optical solutions.
Why Choose TianJin DongFang Group
Your Trusted Partner In The Fiber Optic Industry
TianJin DongFang Group is dedicated to the development and application of fiber optic technologies, serving customers across different markets with a focus on long-term industry growth.
We continuously explore new opportunities in the fiber optic field, working together with partners to support the evolution of modern connectivity and information infrastructure.
Through continuous improvement and industry experience, we aim to create sustainable value for customers and build lasting partnerships worldwide.
Industry Expertise
Years of experience in the fiber optic field allow us to better understand industry trends and customer requirements.
Professional Production System
Well-organized manufacturing processes ensure efficient production management and consistent operation.
Comprehensive Quality Control
Strict inspection procedures help maintain reliable product performance and stable quality standards.
Flexible Product Solutions
We provide adaptable solutions according to different specifications, applications, and project requirements.
Stable Supply Support
Efficient production planning and supply management help ensure reliable delivery for global customers.
Long-Term Cooperation
We value close partnerships with customers through responsive communication and continuous service improvement.
