All You Need To Know About Fiber Optic Cables

All You Need To Know About Fiber Optic Cables
6 min read
07 February 2023

An example of a network cable is a fiber optic cable made up of individual glass fibers protected by a protective jacket. 

Their purpose is long-distance, high-performance data networking and telecommunications. 

Fiber optic cables can transfer data over greater distances and have a higher bandwidth than traditional wired cables. 

Most of the world's communication infrastructure, including the internet, cable TV, and telephone lines, relies on fiber optic connections.


Functional Principles of Fiber Optic Cables

One or more strands of glass, each barely thicker than a human hair, make up a fiber optic cable. The core of each fiber is the conduit via which light travels. 

Glass cladding wraps around the core and reflects light inside to prevent signal loss and keep the light flowing through the cable's twists and turns.

The two basic types of fiber optic cables are single-mode and multi-mode. Single-mode fiber employs extremely thin glass strands and a laser to generate light, while multi-mode optical fiber lines use LEDs.

Wave Division Multiplexing is commonly used in single-mode optical fiber networks to maximise the amount of data traffic carried by the strand. 

WDM enables the transmission of numerous data streams within a single light pulse by allowing for the combination (multiplexing) and subsequent separation (de-multiplexing) of light at multiple wavelengths.


What Are Optical Fiber Cables Constructed From?

While many other materials and components go into making a fiber optic cable, the core strands are typically comprised of glass (silica) and plastic.

Flexible, lightweight, and resistant to bending and shock, plastic optical fibers are typically more cost-effective and user-friendly than their glass counterparts. They are usually utilised in lower-speed, shorter-distance runs as part of the home, industrial, or automotive networks and in situations where lower transmission rates and speeds are acceptable, as well as when the risk of mechanical stress is smaller.


The Many Positives of Optical Fiber Connections

As previously observed, fiber optic cabling has several important qualities that give it a distinct edge over traditional metal conductor cables in several important areas. Among these are:

Transferring Data and Increasing Bandwidth

The bandwidth of traditional metal data cables, typically copper, is low compared to fiber optics. Because voice communications don't necessitate nearly as much bandwidth for mass data transfer as many modern applications do, copper-type communication cable was originally developed to convey voice signals.


Speed

Compared to other methods of data transmission, fiber optic cables' enormous speed advantage is because light pulses are its major source of conveyance. In most cases, the performance of fiber will greatly exceed that of even the best quality copper cables (Cat5 or Cat6).


Distance

Fiber optic cables are extremely fast and have a significantly greater range than other types of cabling due to their low rate of signal power loss. Compared to single fiber optics, which can transmit a signal hundreds of kilometres if the correct materials, signal type (wavelength), and network setup are used, copper cables are typically said to have a restriction of 328 feet in terms of reasonable quality transfer distance.


Interference

Because they don't physically transport an electrical transmission, fiber optics are much less susceptible to interference than older metal cable varieties. This further improves their capacity for fast data transfer over vastly greater distances with no loss of signal quality.


The Highest Standards of Trustworthiness and Safety

Optical fiber is less vulnerable to damage or breaking over long lines than copper cable because it is smaller, lighter, and more robust than the metal variety. Glass fibers don't carry a current, so they don't create a fire hazard even when damaged, or ageing and fiber isn't nearly as susceptible to the effects of bad weather, dampness, and severe temperatures as metal wiring can be.

What Makes Fiber Optic Cables Unique?

Optical fiber cabling, like any other product or component, has various distinguishing features and categories that determine its usefulness in terms of bandwidth, speed, signal strength, and more. Here, we'll dive deeper into some key characteristics and variables that affect the overall performance of a certain fiber optic cable.

Fiber Optic Cables' High Rate of Transmission

The cable mode is the primary determinant of the maximum data transfer rate achieved through a fiber optic connection. 
In a moment, we'll see that the arrangement of optical fibers can be either single-mode or multi-mode, with the former often delivering better speeds over a certain range of distances and the latter typically giving lower speeds.


However, fiber optic remains the quickest form of commercial-grade network connectivity and communications data transfer available today, whether you're utilising single-mode or multi-mode cable.


Constant effort is put into discovering and creating new varieties of optical fiber that break through conventional bandwidth and transfer speed barriers at ever-increasing distances. 


The NICT Network System Research Institute and Fujikura Ltd. collaborated in 2018 to develop "a 3-mode optical fiber, capable of wide-band wavelength multiplexing transmission with a standard outside diameter (0.125 mm) that can be cabled with current equipment," as stated in a news release.


According to phys.org, these scientists achieved "the greatest data rate over 1000 km for any form of standard-diameter [cable]" with a transfer rate of 159 terabits per second across a cable length of 1045 kilometres.

Why Do We Need Cat6 Cables?

Data cabling, known as category 6, is the standard for Gigabit Ethernet and a few other network technologies. 
Like cat5 cables, cat6 cables consist of four individual wires that have been twisted together. The primary distinction between the two is that cat6 fully exploits all four sets.

Conclusion

A product's suitability for a given task depends on its construction materials and core configuration, as these elements directly impact crucial metrics like data transfer speeds, bandwidth, durability, and endurance across a wide range of use cases. 
Connector kinds, cable diameter, and other factors will require your attention. You can also choose category 6 for better result.

 

In case you have found a mistake in the text, please send a message to the author by selecting the mistake and pressing Ctrl-Enter.
Paul Hart 2
Joined: 1 year ago
Comments (0)

    No comments yet

You must be logged in to comment.

Sign In / Sign Up