The usage of optical fiber in the government’s AV industry has received much attention. The ability to prevent and have some security invasions is the sole reason to use fiber cable. Furthermore, these cables aid in the elimination of several other difficulties that are inherent in a twisted-pair cable. Near-end crosstalk (NEXT) and electromagnetic interference are examples of this (EMI).
When compared to copper cable, fiber optic cable is significantly less expensive. However, compared to copper counterparts, the connectors and equipment required to install the cable system are relatively expensive. These optical fiber cables have become the most cost-competitive due to the high emphasis on protecting digital information.
Fiber optic cable in bulk is separated into three or four layers. This contains the core, the cladding, a second layer of reinforcing fibers or the second layer of glass, and the coating. For a more in-depth examination, let’s look at each of them individually:
The central core of the fiber optic cable is significantly thinner. It is made of plastic and glass and has a cylindrical filament. It’s the same size as human hair. To change the refractive index of glass, manufacturers frequently add chemicals known as dopants to silicon dioxide. This refractive index measures how a ray of light bends when it passes through two different mediums.
When light bounces back to the glass wall, the cladding will cover the primary core of your fiber, stopping the light from totally leaking out. However, when contrasted to nature, cladding has a different refractive index. So instead, the light will return to the central core and continue on its journey via the main cable.
This fiber-optic network cable layering will provide additional protection, preventing the delicate glass fiber from being wholly damaged during installation. As a result, this layer, which includes the gel-filled tubes, sleeves, and wide sleeves, is entirely constructed of Kevlar.
It serves as a dark glass or light-absorbing glass layer that is sandwiched between the protecting fibers. This is done to ensure that any light that could leak from one fiber’s strands does not penetrate the other.
The process of coating
Last but not least, we have a coating that serves as an outer layer! This layer will only serve as a light-transmitting medium. It’s also called a jacket because it shields the cable from the elements. Moisture or environmental elements like construction machinery or fishing gear, as well as sharks, can cause this.
It would help if you always acquired fiber optic cable from a reputable store to benefit from all fiber cable components. Their free service will teach you the fundamentals of how to use each piece and how it works.