G.657A1
Product Description
Bending insensitive single-mode optical fiber (G.657.A1) bears the entire characteristics of dispersion unshifted single-mode optical fiber and superior bending performance especially. It is applicable to transmission over entire wavelength from 1260nm to 1625nm. Under the condition of long wave band, the bending radius could be as little as 10mm.
Product Standard
ITU-T recommendation G.652.D/G.657.A1
IEC 60793-2-50 B1.3/B6.a1 optical fiber specifications.
Product Characteristics
It completely overcomes the attenuation of water peak at 1383nm and could operate over the entire wavelength from 1260nm to 1625nm.Good bending loss, applicable to occasion with special requirement of bending radius. Completely compatible with existing G.652.D. Accurate geometrical parameters ensure low splicing loss and high splicing efficiency. Excellent PMD performance supports high-speed and long repeater spacing transmission system.
Optical Characteristics
|
Characteristics |
|
Units |
Value |
|
Attenuation |
1310nm 1383nm 1550nm 1625nm |
dB/km dB/km dB/km dB/km |
≤0.35
≤0.35
≤0.21
≤0.24 |
|
Attenuation vs. Wavelength |
1285-1330nm vs.1310nm 1525-1575nm vs 1550nm |
dB/km |
≤0.04
≤0.03 |
|
Attenuation Discontinuity |
1310nm dB ≤0.05 1550nm |
dB |
≤0.05 ≤0.05 |
|
Attenuation Nonuniformity
|
1310nm dB ≤0.05 1550nm |
dB/km |
≤0.05 ≤0.05
|
|
Attenuation of bidirectional differential |
1310nm dB ≤0.05 1550nm |
dB/km |
≤0.05 ≤0.05
|
|
Zero Dispersion Wavelength |
|
nm |
1300-1324 |
|
Zero Dispersion Slope |
|
ps/(nm2.km) |
≤0.092 |
|
Maximum PMD of Individual Fiber |
|
ps/(km1/2) |
≤0.2
|
|
Cable Cutoff Wavelength λcc |
|
nm |
≤1260
|
|
Effective Group Refraction Index
|
1310nm 1550nm |
|
1.467 1.468 |
|
Mode Field Diameter |
1310nm |
μm |
8.6±0.4 |
Geometrical Characteristics
|
Characteristics |
Units |
Value |
|
|
Cladding Diameter |
um |
125±0.7 |
|
|
Core-Cladding Concentricity Error |
um |
≤0.5 |
|
|
Cladding Non-Circularity |
% |
≤1.0 |
|
|
Coating Diameter |
um |
245±10 |
|
|
Coating Non-Circularity |
% |
≤4 |
|
|
Coating/cladding concentricity deviation |
um |
≤12.5 |
|
|
Warpage |
m |
≥4 |
|
|
Environmental Characteristics（1310nm、1550nm、1625nm） |
|||
|
Characteristics |
|
Units |
Value |
|
Temperature cycling additional decay |
－60℃～+85℃ |
dB/km |
≤0.05 |
|
Additional Attenuation due to damp heat aging |
85℃，RH85%，30 days |
dB/km |
≤0.05 |
|
Additional Attenuation due to water immersion aging |
23℃，30 days |
dB/km |
≤0.05 |
|
Additional Attenuation due to dry heat aging |
85℃，30 days |
dB/km |
≤0.05 |
Mechanical Characteristics
|
Characteristics |
|
Units
|
Value
|
|
Tensile Proof Test |
|
N % Kpsi |
≥9.0 ≥1.0 ≥100 |
|
Coating mechanical peel force |
峰值 Peak Force 平均值 Typical Value |
N |
1.0-8.9
1.0-5.0 |
|
Tensile Strength |
Weibull Distribution 50% Weibull Distribution 15% |
Gpa |
≥4.00
≥3.20 |
|
Dynamic Fatigue Parameter |
|
|
≥20 |
|
Macro bending additional loss |
|||
|
15mm radius, 10 turns |
1550nm 1625nm |
dB |
≤0.25 ≤1.0 |
|
10mm radius, 1 turn |
1550nm 1625nm |
dB |
≤0.75 ≤1.50
|
If you need more support , Please contact us .
