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What Is Optical Fiber?

System - Jennifer Daniels - April 26, 2021

unifi 300mbps

Fiber optic cables are bundles of very pure “glass wires”, which have been covered by two layers of reflective plastic.

At the end of this digital data transmission cable, a light source oscillates between turning it on and off quickly. The light travels through these glass wires and, uninterruptedly, reflects outside the interior of the mirrored plastic coverings, playing a role known as “total internal reflection”.

Systems that are based on optical fiber can transmit billions of bits of data per second, and can even carry several signals along the same fiber, through lasers of different colors. Fiber optic cables are as thin as a hair, but carry digital information over long distances.

sparkly - What Is Optical Fiber?

Main characteristics of optical fiber

Nowadays there are several types of communications spread all over the world, and to meet the great demands, optical fiber has two main types of cables: the Single Mode and the Multimode.

Singlemode: The single mode type is used for long distance signals. It is more complex to handle and requires a lot of technique, in addition to having a higher stroke. Used more for communications with local networks, the single-mode system has a larger diameter, so it is possible to carry more than one signal through LEDs and lasers.

Like so many other technologies, the internet via fiber optics has positives and negatives; beneficial situations of Unifi 300mbps for its use and situations in which this connection option does not fit so well. Here are some pros and cons of this technology:


• Possibility to carry immense amounts of information. A pair of optical fibers (which are about the diameter of a human hair) can transmit about 2.5 million or more phone calls at the same time. In comparison, a copper cable that could handle this same capacity would need to be 6 meters in diameter!

• Reduced dimensions;

• Less incidence of electromagnetic interference;

• More security in the signal;

• It has raw materials in abundance;

• Ease at the time of installation;

• Less deterioration over time (when compared to copper wires).

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