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Air blown fiber optic cable
HF Fibrecore – the smallest air blown fiber optic cable in the world
With HF Fibrecore it is possible to utilize existing tube cables even better by doubling the amount of fibers in air blown fiber optic cables using 200 ym fibers - meaning that the primary and secondary coating on the fiber has been reduced by 20% (see fig. 1) and the fiber cross section is reduced by 36% ...
Fig 1. 9 ym Ø Core, 125 ym Ø cladding and normal 250 ym Ø coating. HF has 200 ym Ø coating
HF has developed several air blown fiber cables that - where common 250 ym fiber only allows 96 or 144 fibers to be blown into the microducts - allow 24 fiber cable for 7/4 or 5 / 3.5 mm Ø, 192 & 144 fiber for 12/8 microducts, 288 fiber cables for 14/10 microducts and 432 fiber cables for 16/12 miccroducts (see fig.2)
HF Fibrecore with 200 ym fiber
So far HF has used either A1 or A2 fibers for these cables (see figure 2)
Fig. 2 ITU-desccription of A1, A2, B2 and B3 fiber in terms of bending diameter.
A1, A2, B2 and B3 fibers are inherently more expensive, as relatively few of these fibers are produced in comparison to the conventional D fiber. HF wishes to support the growing market for small air blown ables and offers our HF fibrecore wir blown cables with 200 ym fiber in the D and A1 types.
The fibers still have the same high quality in terms of transmission, splice and dispersion etc.