Single Mode Fiber G.657.A1
Fiber type G.657.A1
OPK code A1
Rev. 016-21/41
|
Fiber type |
G.657.A1 |
|
OPK code |
A1 |
|
Core |
Germanium doped silica |
|
Cladding |
Silica, step index and matched clad type |
|
Coating |
Dual layers of UV-cured acrylate |
|
|
|
|
Optical Characteristics |
|
|
Attenuation coefficient Loose tube Cables (typical / max.) |
|
|
at 1310 nm |
0.32 / 0.36 dB/km |
|
at 1550 nm |
0.19 / 0.24 dB/km |
|
at 1625 nm |
0.22 / 0.26 dB/km |
|
Attenuation coefficient Tight Buffered Cables (typical / max.) |
|
|
at 1310 nm |
0.35 / 0.40 dB/km |
|
at 1550 nm |
0.25 / 0.40 dB/km |
|
Point of discontinuity at 1310 nm and 1550 nm |
≤ 0.1 dB |
|
Cable cut-off wavelength (λcc) |
≤ 1260 nm |
|
Zero dispersion wavelength |
1302 – 1324 nm |
|
Zero dispersion slope |
≤ 0.090 (ps/(nm2/km ) |
|
Chromatic dispersion at 1285 ~ 1330 nm |
≤ 3.5 ps/(nm.km) |
|
Chromatic dispersion at 1550 nm |
≤ 18.0 ps/(nm.km) |
|
Maximum individual fiber PMD |
≤ 0.15 ps/Ökm |
|
Fiber PMD link value |
≤ 0,1 ps/Ökm |
|
Effective group index of refraction at 1310 nm |
1.467 |
|
Effective group index of refraction at 1550 nm |
1.468 |
|
Effective group index of refraction at 1625 nm |
1.468 |
|
Backscatter coefficient at 1310 nm |
-79.2 dB |
|
Backscatter coefficient at 1550 nm |
-81.7 dB |
|
Backscatter coefficient at 1625 nm |
-82.5 dB |
|
|
|
|
Geometrical Characteristics |
|
|
Mode field diameter at 1310 nm |
8.9 ± 0.4 µm |
|
Core/Cladding concentricity error |
≤ 0.5 µm |
|
Cladding diameter |
125.0 ± 0.7 µm |
|
Cladding non-circularity |
≤ 0.7% |
|
Primary coating diameter (uncoloured fibre) |
242 ±5 µm |
|
Primary coating diameter (coloured fibre) |
250 ±10 µm |
|
Fibre curl radius |
≥ 4.0 m |
|
Coating-Cladding concentricity |
≤ 12 µm |
|
|
|
|
Macrobending loss |
|
|
10 turns, mandrel radius 15 mm at 1550 nm |
≤ 0.25 dB |
|
10 turns, mandrel radius 15 mm at 1625 nm |
≤ 1.0 dB |
|
1 turn, mandrel radius 10 mm at 1550 nm |
≤ 0.75 dB |
|
1 turn, mandrel radius 10 mm at 1625 nm |
≤ 1.5 dB |
|
|
|
|
Mechanical Characteristics |
|
|
Proof test level |
≥ 100 kpsi (1.0% strain) |
|
Coating strip force |
1.3 ~ 8.9 N |
|
Dynamic fatigue resistance parameter |
≥ 20 |
|
|
|
|
Typical attenuation is the value measured for at least 90% of the fibers in the cable. OTDR measurement values can only be guaranteed for cable lengths of 1000 m and more. Cable on the reel may show an discontinuity of the OTDR curve caused by winding of the cable on the reel. |
|
