Product Detail
G.652.B Low Attenuation Non-Dispersion-Shifted Single Mode Bare Fiber
G.652.B Non-Dispersion-Shifted Single Mode Bare Fiber is designed for reliable optical communication systems requiring low attenuation, controlled dispersion, and stable transmission over long distances. Manufactured to meet or exceed ITU-T G.652.B and IEC B1.1 technical requirements, it provides consistent optical characteristics for demanding communication networks.
With balanced transmission performance across common operating wavelengths, this fiber is suitable for a wide range of cable constructions and network architectures. It can be supplied in reel lengths from 2.1 km to 50.4 km, providing flexibility for different cable manufacturing and deployment requirements.
Single Mode Fiber
@1550nm dB/km
Delivery Length
Core Features of Our Single Mode Bare Fiber
Controlled Dispersion
Balanced dispersion characteristics help maintain signal quality across standard transmission wavelengths.
Low PMD Characteristics
Low polarization mode dispersion supports stable performance in high-bit-rate optical transmission systems.
Consistent Fiber Geometry
Precisely controlled dimensional characteristics provide stable compatibility during cable processing and assembly.
Broad Cable Compatibility
Designed for integration into ribbon, loose-tube, central-tube, slotted-core, and tight-buffered cable structures.
Product Specifications & Technical Data
G.652.B Fiber Specifications
| Parameter | Specification | Unit |
|---|---|---|
| Cladding Diameter | 125.0 ± 1 | μm |
| Cladding Non-Circularity | ≤ 1 | % |
| Coating Diameter | 245 ± 10 | μm |
| Coating-Cladding Concentricity | ≤ 12 | μm |
| Coating Non-Circularity | ≤ 6 | % |
| Core-Cladding Concentricity Error | ≤ 0.6 | μm |
| Fiber Curl (Bending Radius) | ≥ 4 | m |
| Delivery Length | 2.1–50.4 | km/reel |
| Mode Field Diameter @1310nm | 9.2 ± 0.5 | μm |
| Mode Field Diameter @1550nm | 10.4 ± 0.8 | μm |
| Attenuation @1310nm | ≤ 0.36 | dB/km |
| Attenuation @1550nm | ≤ 0.22 | dB/km |
| Attenuation @1625nm | ≤ 0.24 | dB/km |
| Attenuation vs. Wavelength @1285–1330nm | ≤ 0.04 | dB/km |
| Attenuation vs. Wavelength @1525–1575nm | ≤ 0.03 | dB/km |
| Point Discontinuity @1310nm | ≤ 0.05 | dB |
| Point Discontinuity @1550nm | ≤ 0.05 | dB |
| Maximum PMD | ≤ 0.2 | ps/√km |
| PMD Link Design Value | ≤ 0.1 | ps/√km |
| Typical PMD | 0.04 | ps/√km |
| Zero-Dispersion Wavelength (λ0) | 1312 ± 12 | nm |
| Zero-Dispersion Slope (S0) | ≤ 0.092 | ps/(nm²·km) |
| Dispersion @1285–1339nm | −3.5 to +3.5 | ps/(nm·km) |
| Dispersion @1271–1360nm | −5.3 to +5.3 | ps/(nm·km) |
| Cable Cutoff Wavelength (λcc) | ≤ 1260 | nm |
| Temperature Induced Attenuation | ≤ 0.05 | dB/km |
| Water Immersion Induced Attenuation | ≤ 0.05 | dB/km |
| Dry Heat Induced Attenuation | ≤ 0.05 | dB/km |
| Damp Heat Induced Attenuation | ≤ 0.05 | dB/km |
Applications of Single Mode Optical Fiber
Long-Distance Telecommunication Networks
G.652.B fiber is suitable for long-distance communication links where low attenuation and stable optical performance are important. It can support reliable signal transmission across extended network routes and high-capacity communication infrastructure.
FTTH & Access Networks
The fiber can be used in FTTH and optical access networks, providing a dependable transmission medium for residential, commercial, and regional connectivity systems where consistent optical performance is required.
Industrial & Special Communication
Supporting specialized optical communication environments, our fiber solutions are suitable for industrial systems and customized applications requiring reliable connectivity.
Optical Cable Manufacturing
The fiber is compatible with a wide range of cable constructions, including ribbon, loose-tube stranded, slotted-core, central-tube, and tight-buffered designs, making it suitable for different optical cable production requirements.
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.
