Transmission of data and voice over long distances with little loss of signal and quality, all that with ultra-high speeds. Have you thought about the wonders that would allow? We bet you should be thinking: Download programs and music would be much faster and the standby time for downloads would be reduced to a minimum.
And that’s exactly what would happen if all broadband internet companies have made fiber optic technology for users. Logically the change of technology demands large amounts of money, so it is difficult that we have fiber optics on all household networks for the next few years.
Until a few years ago, only a few universities and public institutes have this kind of connection in Brazil. In 2017, several telephony operators rely on technology and offer very interesting packages to consumers — at least in the major capitals.
Optical fiber cables are replacing copper wires to increase the speed of transmitting digital information. These cables are bundles of extremely pure “glass wires” that have been coated in two layers of reflective plastic. A light source is switched on and off quickly to one end of the digital data transmission cable. Light travels through the glass wires and continuously reflects outside the interior of the mirrored plastics in a process known as internal total reflection. Optical fiber-based systems can transmit billions of data bits per second, and they can even take multiple signals along the same fiber using different color lasers. These cables are as thin as a wire of human hair that carries digital information along great distances.
The transmission of light by fiber follows a single principle, regardless of the material used or application: It is launched a beam of light at one end of the fiber and, by the optical characteristics of the medium (fiber), this beam travels through the fiber through successive reflections. The fiber has at least two layers: the core (glass filament) and the coating (electrically material.
Today, most of the Internet communication traffic passes through true highways of data made of fiber optics, which even traverse the oceans of the planet. Large companies and Internet providers connect their computers directly to an optical cable, obtaining an Internet fast. However, it is still very expensive to bring a fiber optic to most of the residences. Even the current broadband services do not lead a fiber-optic direct to the homes, preferring to use existing cables, such as telephone or subscription-TV. It is good to make clear that this powerful drizzle is not only useful for telecommunications, and can also be applied in many other sectors. In medicine, for example, fiber optic is being used to conduct high-powered lasers that, in surgeries, serve to cauterize arteries and tissues. Already in the service sector, it is present in flexible readers of the bar codes of the products sold.
My internet, it’s fiber optics and yours? Tell me your experiences.