Non-Zero Dispersion Shifted Single Mode Fiber G.656
Fiber type G.656
OPK code 656
Rev. 011-20/26
Core |
Germanium doped Silica |
Cladding |
Pure Silica |
Coating |
Dual layers of UV-cured acrylate |
Optical Characteristics |
|
Attenuation coefficient Loose tube Cables (Typical / Maximum1) @1550 nm |
0.23 / 0.4 dB/km |
Attenuation coefficient Loose tube Cables (Typical / Maximum1) @1625 nm |
0.26 / 0.4 dB/km |
Attenuation coefficient Tight Buffered Cables (Typical / Maximum1) @1550 nm |
0.26 / 0.4 dB/km |
Attenuation coefficient Tight Buffered Cables (Typical / Maximum1) @1625 nm |
0.31 / 0.4 dB/km |
Point of discontinuity at 1550 nm |
≤ 0.15 dB |
Cable cut-off wavelength |
≤ 1450 nm |
Chromatic dispersion at 1530 ~ 1565 nm |
5.5 – 10.0 ps/(nm⋅km) |
Chromatic dispersion at 1565 ~ 1625 nm |
7.5 – 13.5 ps/(nm⋅km) |
Uncabled fiber PMD |
≤ 0.1 ps/Ökm |
Geometrical Characteristics |
|
Mode field diameter @1550 nm |
9.2 ± 0.5 µm |
Core/Cladding concentricity error |
≤ 0.5 µm |
Cladding diameter |
125.0 ± 1.0 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 |
|
100 turns, mandrel diameter 60 mm @1550 nm |
≤ 0.05 dB |
100 turns, mandrel diameter 60 mm @1625 nm |
≤ 0.05 dB |
1 turns, mandrel diameter 32 mm @1550 nm |
≤ 0.5 dB |
1 turn, mandrel diameter 32 mm @1625 nm |
≤ 0.5 dB |
Mechanical Characteristics |
|
Proof test level |
≥ 100 kpsi (1.0% strain) |
Coating strip force |
1.3 ~ 8.9 N |
Dynamic fatigue resistance parameter |
≥ 20 |
1 ISO/IEC 11801-1 |
|