G 652d
Production started in 2016. A standard single-mode fiber is a thin (5-8 µm) core made of glass alloyed by Germanium surrounded by a thicker layer of pure glass.
Read moreG 651
In a standard multimode graded index fiber the core diameter is 50 and 62,5 µm which is a bigger value than transmission wavelength. This leads to propagation of plenty of different light rays – modes – in all the three transmission windows. Two transmission windows – 850 and 1310 nm are usually used to transmit the light along a multimode fiber.
Read moreG 655
Single-mode optical fiber with non-zero shifted dispersion and small inclination of dispersion curve is used for long-distance fiber-optic systems of data transmission with DWDM (dense wavelength division multiplexing) that work in C- and L-ranges.
Read moreG 657
Production started in 2017. The fiber described in ITU-T G.657 recommendations allows very small bending radius (up to 7,5 mm) and is used for indoor installations.
Read moreG 654
Advanced pure silica core single mode optical fiber with low transmission losses over long distances for the construction of high-performance optical telecommunications networks such as terrestrial long-distance communication systems and submarine trunk cables with optical amplifiers.
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