Fiber optic cable CABELTE

Cabelte produced the first optical cable (multimode) in Portugal, in 1983. The cable was supplied to “Instituto para Desenvolvimento das Comunicações (IDC)” for the trial connection between “IDC” and “Inesc -Instituto de Engenharia de Sistemas e Computadores”.
The first cables produced for commercialization, called “light guide cables”, were made of 50/125 multimode fibers, tight structure, and had 4 to 6 fibers, regular customers were the former “CTT/TLP”, today “PT Comunicações”.
The big increase occurred in the production of optical fibre cables at Cabelte takes place at the beginning of the 90s, with the construction of a new plant and with the introduction of “loose” technology.
Since then, optical fiber has become more and more important and today is one of the most important telecommunication channels, due to the characteristics of the fiber itself, particularly its low attenuation associated with an almost infinite bandwidth (single mode fibers), and to the development occurred in the optical transmission systems.
Today, optical fiber cables are part of all communication “backbones” in metropolitan and regional networks. The presence of “triple pay” services, interactive games, high definition television, telemedicine, among others, requiring a high bandwidth in the access network, foresee the gradual replacement of copper by fiber optics up to the subscriber.

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