G657A1 Low-Loss Bend-Insensitive Single-Mode Fiber
Bend-Resistant Low Loss
Full-Band Capacity Expansion
Low-Attenuation Long-Haul
Description
Key Features
- Bend-Resistant Low Loss
- Full-Band Capacity Expansion
- Low-Attenuation Long-Haul
- Small-Radius Bend Loss Suppression
- Low Splice Loss
Applications
- Backbone Network Transmission
- Metropolitan Area Network Coverage
- Access Network Deployment
- Small Bend Radius Scenarios
- Indoor Cabling System
Product Introduction
Company's low-loss bend-insensitive single-mode fiber supports full-band transmission from 1260 to 1625 nm and is a flagship product of the bend-insensitive fiber series. Building on an inherently low-loss design, it further strengthens macro-bend resistance, delivering the dual advantages of low attenuation and bend insensitivity. Fully compatible with standard single-mode fiber, it meets the combined requirements of multi-channel, high-bit-rate, long-distance transmission and small bend-radius deployment. It meets or exceeds ITU-T G.652.D/G.657.A1 and IEC 60793-2-50 B1.3/B6.a1 specifications.
Unique Technology
Company 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
G657A1 Low-Loss Bend-Insensitive Single-Mode Fiber Specifications
|
Parameter |
Condition |
Value |
|
|
Optical Characteristics |
|||
|
Attenuation [dB/km] |
1310nm |
≤0.32 |
|
|
1383nm(after hydrogen aging) |
≤0.31 |
||
|
1460nm |
≤0.31 |
||
|
1550nm |
≤0.18 |
||
|
1625nm |
≤0.20 |
||
|
Attenuation Variation vs. Wavelength [dB/km] |
1285~1330nm, relative to 1310nm |
≤0.03 |
|
|
1525~1575nm, relative to1550nm |
≤0.02 |
||
|
Chromatic Dispersion over Wavelength Range [ps/(nm·km)] |
1285nm~1340nm |
-3.5~3.5 |
|
|
1550nm |
≤18 |
||
|
1625nm |
≤22 |
||
|
Zero-Dispersion Wavelength (λ0) [nm] |
-- |
1300~1324 |
|
|
Zero-Dispersion Slope (S0) [ps/(nm2·km)] |
-- |
≤0.092 |
|
|
Typical Zero-Dispersion Slope [ps/(nm2·km)] |
-- |
0.086 |
|
|
PMD Coefficient(PMD) [ps/√km] |
Maximum per Fiber |
-- |
≤0.1 |
|
Fiber Link Value(M=20,Q=0.01%) |
-- |
≤0.06 |
|
|
Typical Value |
-- |
0.04 |
|
|
Cable Cut-off Wavelength( λcc) [nm] |
-- |
≤1260 |
|
|
Mode Field Diameter(MFD) [nm] |
1310nm |
8.7~9.5 |
|
|
1550nm |
9.8~10.8 |
||
|
Effective Group Refractive Index(Neff) |
1310nm |
1.466 |
|
|
1550nm |
1.467 |
||
|
Point Discontinuity [dB] |
1310nm |
≤0.05 |
|
|
1550nm |
≤0.05 |
||
|
Parameter |
Condition |
Value |
|
|
Geometrical Characteristics |
|||
|
Cladding Diameter [μm] |
-- |
125.0±0.7 |
|
|
Cladding Non-Circularity [%] |
-- |
≤0.7 |
|
|
Coating Diameter [μm] |
-- |
235~245 |
|
|
Coating/Cladding Concentricity Error [μm] |
-- |
≤12.0 |
|
|
Coating Non-Circularity [%] |
-- |
≤6.0 |
|
|
Core/Cladding Concentricity Error [μm] |
-- |
≤0.5 |
|
|
Curl (Radius) [m] |
-- |
≥4 |
|
|
Delivery Length [km/spool] |
-- |
Up to 50.4 |
|
|
Environmental Characteristics 1310nm, 1550nm and 1625nm |
|||
|
Temperature-Induced Attenuation [dB/km] |
-65℃ 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] |
10turns,radius15mm |
1550nm |
≤0.05 |
|
10turns,radius15mm |
1625nm |
≤0.3 |
|
|
1turns,radius10mm |
1550nm |
≤0.5 |
|
|
1turns,radius10mm |
1625nm |
≤1.5 |
|
|
Coating Strip Force [N] |
Typical Avg. |
1.5 |
|
|
Peak |
1.3~8.9 |
||
|
Dynamic Fatigue Parameter (nd) |
-- |
≥20 |
|
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