ITU-T G.654 Singlemode Optical Fiber
Description:
ITU-T Recommend G.654 fiber is a cut-off shifted single-mode optical fiber especially used for high bandwidth long distance transmission.
The G. 654 fiber is a single mode optical fiber and cable which has the zero-dispersion wavelengths around 1300nm, the fiber with loss minimized and cut-off wavelength shifted at around 1550nm.
The fiber standard was firstly introduced in year 1988.
The ITU-T G.654 Fiber could be applied in higher bandwidht submarine systems, back haul system.
Specifications:
Parameters | ITU-T G.654 A | ITU-T G.654 B | ITU-T G.654 C | ITU-T G.654 D | |
Fiber Attribute | |||||
Mode Field Diameter | Wavelenths | 1550nm | 1550nm | 1550nm | 1550nm |
Core diameter | 9.5 ~ 10.5um | 9.5 ~ 13.0um | 9.5 ~ 10.5um | 11.5 ~ 15.0um | |
Tolerance | ± 0.7um | ± 0.7um | ± 0.7um | ± 0.7um | |
Cladding Diameter | Clad Diameter | 125um | 125um | 125um | 125um |
Tolerance | ± 0.7um | ± 1um | ± 0.7um | ± 0.7um | |
Clad Non-Circularity | maximum | ≤2.0 % | ≤2.0 % | ≤2.0 % | ≤2.0 % |
Core/Clad Concentricity Error (Offset) | maximum | ≤ 0.8um | ≤ 0.8um | ≤ 0.8um | ≤ 0.8um |
Cable Cutoff Wavelength (λcc) | maximum | ≤ 1530 nm | ≤ 1530 nm | ≤ 1530 nm | ≤ 1530 nm |
Macrobend Attenuation | Radius | 30mm | 30mm | 30mm | 30mm |
number of turns | 100 turns | 100 turns | 100 turns | 100 turns | |
maximum at 1652nm | 0.5dB | 0.5dB | 0.5dB | 0.5dB |
Application:
Construction: