ITU-T Rec. G.654 (1988) – Characteristics of a 1550 nm wavelength loss-minimized
single-mode optical fibre cable
1 Fibre characteristics
1.1 Mode field diameter
1.2 Cladding diameter
1.3 Mode field concentricity error
1.4 Non-circularity
1.5 Cut-off wavelength
1.6 1550 nm bend loss performance
1.7 Material properties of the fibre
1.8 Example of fibre design guidelines
2 Factory length specifications
2.1 Attenuation coefficient
2.2 Chromatic dispersion coefficient
3 Elementary cable sections
ANNEX A – Meaning of the terms used in the Recommendation
ANNEX B – Test methods for loss-minimized single-mode fibres