Standards library
Practical summaries of the international standards that govern fiber optics — with links to the official sources. Standards texts are copyrighted by their publishers; always obtain the official document.
Optical fibres — specifications and test methods
The IEC family for fibre products: 60793-1-x measurement methods (dimensions, attenuation, bandwidth) and 60793-2-x product specifications (A1 multimode, B single-mode classes mapping to ITU G.65x).
50/125 µm multimode graded-index fibre for access
Specifies graded-index multimode fibre for the 850/1300 nm regions used in short-reach access and premises networks.
Characteristics of single-mode optical fibre and cable
The world's most deployed fibre. Defines standard single-mode fibre (SSMF) attributes: mode field diameter, cut-off wavelength, attenuation and dispersion limits for the 1310/1550 nm windows. G.652.D adds low water peak for full-spectrum use.
Non-zero dispersion-shifted single-mode fibre
NZDSF keeps a small, controlled amount of chromatic dispersion in the C-band to suppress non-linear effects in DWDM long-haul systems.
Bend-loss insensitive single-mode fibre for access networks
Defines bend-insensitive fibres (A1/A2/B2/B3) able to withstand radii down to 10, 7.5 and 5 mm — essential for FTTH drops, in-building wiring and compact closures.