Hard clad silica optical fiber

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Hard-clad silica optical fiber (short HCS fiber or HCSF , dt. Hard-coated light waveguide ), and polymer clad silica fiber or plastic clad silica fiber (short PCS fiber or PCF fiber ) denotes an optical fiber with an optical core of Quartz glass and an optical jacket made of a special plastic z. B. Tefzel ( ETFE ), core and cladding do not form an inseparable unit as is the case with quartz / quartz fibers (English silica-silica fiber ).

Construction of HCS and fiber optic cables

Due to their medium bandwidth and transmission rate of <100 Mbit / s, HCS fibers are suitable for medium ranges of up to two kilometers, e.g. B. in local networks of buildings or in industry. The general rule here is: the higher the attenuation, the lower the range.

Spectral attenuation of optical fibers (LWL)

For comparison: plastic fiber-optic cables (also POF - polymer optical fibers ) have a data rate of <1000 Mbit / s. The maximum range is around 100 meters. In contrast, fiber optic cables have very high bandwidths and transmission rates up to GBit / s. With fiber optics, ranges of more than 10 kilometers can be achieved. In terms of range, an HCS fiber therefore moves between POF fiber-optic cables and multi- or singlemode fibers .

For HCS cables there are (HCS-F-SMA) and various HFBR plugs, as well as FO5, FO7, SC and FC / PC plugs.

Application areas fiber types
Fiber type Core / sheath operation area expansion Data rates
glass fiber 9/125 µm

10/125 µm

telecommunications more than 10 km Mbit / s to Gbit / s
glass fiber 50/125 µm

62.5 / 125 µm

local networks in middle areas,

Plants, buildings, telecommunications

up to 4 km <155 Mbit / s
HCS fiber 200/230 µm local networks in buildings and industry up to 2 km <100 Mbit / s
Plastic (POF) 980/1000 µm local networks in buildings, industry and vehicles up to 100 m <1000 Mbit / s


Web links

  • HPCF fiber on itwissen.info, accessed March 4, 2017.
  • HCS fiber on itwissen.info, accessed March 4, 2017.
  • Fiber optics on itwissen.info, accessed March 4, 2017.