The Properties Of ITU-T Rec. G652|G657 Single Mode Optical Fiber
Category |
Description |
G.652.D |
G.652.D |
G.657.A1 |
G.657.A2 |
Unit/ |
|
Transmission |
850nm (multimode optical fiber communication system) |
@1310 nm |
≤0.35 |
≤0.34 |
≤0.34 |
≤0.34 |
dB/km |
@1285-1330 nm |
≤0.37 |
≤0.37 |
≤0.37 |
dB/km |
|||
@1383 nm(after hydrogen aging) |
≤0.30 |
≤0.30 |
≤0.31 |
≤0.31 |
dB/km |
||
@1460 nm |
|||||||
@1490 nm |
≤0.24 |
≤0.23 |
≤0.23 |
dB/km |
|||
@1550 nm |
≤0.22 |
≤0.21 |
≤0.2 |
≤0.2 |
dB/km |
||
@1525-1575 nm |
≤0.22 |
≤0.21 |
≤0.21 |
dB/km |
|||
@1625 nm |
≤0.25 |
≤0.24 |
≤0.22 |
≤0.22 |
dB/km |
||
Mode Field Diameter |
@1310 nm |
8.6±0.4 |
9.0±0.4 |
9.0±0.3 |
8.6±0.4 |
µm |
|
@1550 nm |
9.8±0.5 |
10.2±0.4 |
10.2±0.4 |
9.6±0.5 |
µm |
||
Cable Cut-off wavelength(λ cc) |
≤1260 |
≤1260 |
≤1260 |
≤1260 |
nm |
||
Zero Dispersion Wavelength |
1300-1324 |
1300-1324 |
1300-1324 |
1300-1324 |
nm |
||
Zero Dispersion Slope |
≤0.092 |
≤0.092 |
≤0.09 |
≤0.09 |
ps/nm²/km |
||
Dispersion Coefficient |
@1285-1339 nm |
≤3.4 |
≤3 |
≤3.4 |
ps/(nm·km) |
||
@1271-1360 nm |
≤5.3 |
ps/(nm·km) |
|||||
1525-1575nm |
|||||||
1530-1565nm |
|||||||
1565-1625nm |
|||||||
@1550 nm |
≤ 18 |
≤ 18 |
≤ 17 |
≤ 18 |
ps/(nm·km) |
||
@1625 nm |
≤ 22 |
≤ 22 |
≤ 21 |
≤ 22 |
ps/(nm·km) |
||
PMD Maximum Individual Fiber |
≤0.1 |
≤0.1 |
≤0.1 |
≤0.1 |
ps√km |
||
PMD Link Design Value |
≤0.06 |
≤0.06 |
≤0.06 |
≤0.06 |
ps/√km |
||
Point Discontinuity |
@1310 nm, @1550 nm |
≤0.05 |
≤0.05 |
≤0.05 |
≤0.05 |
dB |
|
EGRI |
@1310 nm |
1.4671 |
1.4671 |
1.4676 |
|||
@1550 nm |
1.4675 |
1.4675 |
1.4683 |
||||
@1625 nm |
1.468 |
1.468 |
1.4685 |
||||
Macro Bending Loss |
10turns of 15mm radius |
≤0.25 |
≤0.03 |
@1550 nm |
|||
100turns of 25mm radius |
|||||||
1turns of 16mm radius |
≤0.25 |
≤0.03 |
|||||
1turns of 10mm radius |
≤0.75 |
≤0.1 |
|||||
1turns of 7.5mm radius |
≤0.2 |
||||||
1turns of 5mm radius |
|||||||
100turns of 30mm radius |
≤0.05 |
≤0.05 |
@1625 nm |
||||
100turns of 25mm radius |
|||||||
10turns of 15mm radius |
≤1.0 |
≤0.1 |
|||||
1turns of 10mm radius |
≤1.5 |
≤0.2 |
|||||
1turns of 7.5mm radius |
≤0.5 |
||||||
1turns of 5mm radius |
|||||||
Category |
Description |
G.652.D |
G.652.D |
G.657.A1 |
G.657.A2 |
Unit/ |
|
Dimensions |
Cladding Diameter |
125±0.7 |
125±0.5 |
125±0.5 |
125±0.5 |
µm |
|
Core / Cladding Concentricity Error |
≤0.5 |
≤0.4 |
≤0.4 |
≤0.4 |
µm |
||
Cladding Non-circularity |
≤1.0 |
≤0.7 |
≤0.7 |
≤0.7 |
% |
||
Coating Diameter |
245±5 |
245±5 |
242±5 |
242±5 |
µm |
||
Coating / Cladding Concentricity Error |
≤12 |
≤12 |
≤8 |
≤8 |
µm |
||
Mechanical Characteristics |
Proof Test |
Fiber Strain |
≥1 |
≥1 |
≥1 |
≥1 |
% |
Fiber Load |
≥9 |
≥9 |
≥9 |
≥9 |
N |
||
Stress |
≥100 |
≥100 |
≥100 |
≥100 |
kpsi |
||
Dynamic Stress Corrosion Susceptibility Factor |
Unaged &Aged(30 days@85℃,85%R.H.) |
≥20 |
≥20 |
≥20 |
≥20 |
||
Coating Strip Force |
Peak Value |
1.3-8.9 |
1.3-8.9 |
1.3-8.9 |
1.3-8.9 |
N |
|
Fiber Curl |
≥4 |
≥4 |
≥4 |
≥4 |
m |
||
Environmental Characteristics |
Dry heat aging(30days@85℃) |
@1310 nm, @1550 nm |
≤0.05 |
≤0.05 |
≤0.05 |
≤0.05 |
dB/km |
Accelerated ageing (30days@85℃,85%R.H.) |
@1310 nm, @1550 nm |
≤0.05 |
≤0.05 |
≤0.05 |
≤0.05 |
dB/km |
|
Temperature Cycling |
@1310 nm, @1550 nm |
≤0.05 |
≤0.05 |
≤0.05 |
≤0.05 |
dB/km |
|
Water Soak(30days@23℃) |
@1310 nm, @1550 nm |
≤0.05 |
≤0.05 |
≤0.05 |
≤0.05 |
dB/km |