
G652 Ultra Low-Loss Single-Mode Fiber
Improved OSNR, Support 400Gb/s+
Extended Repeater Spacing
Increased Redundancy, Reduced Cost
Description
Key Features
- Ultra-Low Loss
- Low Bending Loss
- Improved OSNR, Support 400Gb/s+
- Extended Repeater Spacing
- Increased Redundancy, Reduced Cost
- Reduced Installation Rework
- Hydrogen Aging Resistance

Applications
- Multi-Protocol Compatibility
- WDM Compatible
- Three-Tier Network
- Integrated Services
- High-Speed Ultra Long Haul Transmission
- All-Fiber Compatible
Product Introduction
's ultra-strong ultra-low-loss single-mode fiber features a depressed-cladding index profile, with macro-bend loss over 10× better than G.652.D and bending performance exceeding ITU-T G.657.A1, enabling smaller, lighter cable designs. With a 9.1 μm mode field diameter matching standard single-mode fiber, it integrates seamlessly into existing networks. Extremely low attenuation delivers higher OSNR, supporting upgrades from 100Gb/s to 400Gb/s and beyond, while extending repeater spacing and increasing system redundancy. Proprietary hydrogen-aging-resistant materials ensure long-term stability. Compliant with ITU-T G.652.B and G.654.C.
Unique Technology
is a high-tech enterprise with full closed-loop capabilities from fiber winding equipment and coils to FOGs, fiber/MEMS inertial products, IMU circuits, software, and test equipment. End-to-end process control improves quality and reduces costs. Operating under ISO9001 with strict processes, it ensures product reliability and consistency.
Parameters
G652 Ultra Low-Loss Single-Mode Fiber Specifications
|
Parameter |
Condition |
Value |
|
|
Optical Characteristics |
|||
|
Attenuation [dB/km] |
1310nm |
≤0.31 |
|
|
1550nm |
≤0.17 |
||
|
1625nm |
≤0.20 |
||
|
Attenuation Variation vs. Wavelength [dB/km] |
1285~1330nm, Relative to 1310 nm |
≤0.03 |
|
|
1525~1575nm, Relative to 1550 nm |
≤0.02 |
||
|
Chromatic Dispersion over Wavelength Range [ps/(nm·km)] |
1285~1340nm |
-3.5 to 3.5 |
|
|
1550nm |
≤18 |
||
|
1625nm |
≤22 |
||
|
Zero-Dispersion Wavelength(λ0) [nm] |
-- |
1300~1324 |
|
|
Zero-Dispersion Slope(S0) [ps/(nm2·km)] |
-- |
≤0.092 |
|
|
Polarization Mode Dispersion (PMD) (PMD) [ps/√km] |
Individual Fiber Max. |
-- |
≤0.1 |
|
Fiber Link Value (M=20, Q=0.01%) |
-- |
≤0.06 |
|
|
Typical |
-- |
0.04 |
|
|
Cable Cut-off Wavelength (λcc) [nm] |
-- |
≤1260 |
|
|
Mode Field Diameter (MFD) [μm] |
1310nm |
8.7~9.5 |
|
|
1550nm |
9.8~10.8 |
||
|
Effective Group Index (Neff) |
1310nm |
1.463 |
|
|
1550nm |
1.464 |
||
|
Point Discontinuity [dB] |
1310nm |
≤0.05 |
|
|
1550nm |
≤0.05 |
||
|
Parameter |
Condition |
Value |
|
|
Geometrical Characteristics |
|||
|
Cladding Diameter [μm] |
-- |
125.0±0.7 |
|
|
Cladding Non-Circularity [%] |
-- |
≤1.0 |
|
|
Coating Diameter [μm] |
-- |
235~255 |
|
|
Coating/Cladding Concentricity Error [μm] |
-- |
≤12.0 |
|
|
Coating Non-Circularity [%] |
-- |
≤6.0 |
|
|
Core/Cladding Concentricity Error [μm] |
-- |
≤0.6 |
|
|
Curl (Radius) [m] |
-- |
≥4 |
|
|
Delivery Length [km/spool] |
-- |
Up to 25 |
|
|
Environmental Characteristics 1310nm, 1550nm and 1625nm |
|||
|
Temperature-Induced Attenuation [dB/km] |
-60℃ to 85℃ |
≤0.05 |
|
|
Temperature-Humidity Cycling Attenuation [dB/km] |
-10℃ to 85℃, 98% Relative Humidity |
≤0.05 |
|
|
Water Immersion Attenuation [dB/km] |
23℃, 30 days |
≤0.05 |
|
|
Damp Heat Attenuation [dB/km] |
85℃, 85%Relative Humidity, 30 days |
≤0.05 |
|
|
Dry Heat Aging [dB/km] |
85℃, 30 days |
≤0.05 |
|
|
Mechanical Characteristics |
|||
|
Proof Test Level |
Absolute Force [N] |
-- |
≥9.0 |
|
Strain [%] |
-- |
≥1.0 |
|
|
Stress [kpsi] |
-- |
≥100 |
|
|
Macro-Bending Loss [dB] |
100turns, radius30mm |
1625nm |
≤0.05 |
|
100turns, radius25mm |
1310nm and 1550nm |
≤0.05 |
|
|
1turns, radius16mm |
1550nm |
≤0.05 |
|
|
Coating Strip Force [N] |
Typical Avg. |
1.5 |
|
|
Peak |
1.3~8.9 |
||
|
Dynamic Fatigue Parameter (nd) |
-- |
≥20 |
|
Customization Information
Other fiber lengths and higher screening tension available upon request..
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