Fibre cabling is the backbone of the internet, providing lightning-fast data transmission and ensuring that the digital world functions seamlessly.
At Elam, our team have the expertise to help our clients choose the right fibre cabling solution. We ensure to educate our clients on all they need to know to ensure fibre cables run smoothly day-to-day.

What is Fibre Cabling?

Fibre optic cables can be described as slender, hair-thin strands of glass that transmit data using light signals. Unlike traditional copper cables, which transmit data through electrical currents, fibre optic cables rely on light transmission principles. This technology is what makes fibre optics so powerful and efficient.

How Does Fibre Cabling Work?

The functioning of fibre cabling can be broken down into different steps, these include:

1. Signal Generation

The process begins with the conversion of electrical data signals into light signals. This is achieved using a laser diode or light-emitting diode (LED). These light sources emit photons (particles of light) that transmit data.

2. Signal Encoding

Before the data is transmitted as light, it must be encoded into a format that can be carried by photons. In most cases, this encoding process is done using a method known as “modulation,” where the intensity or frequency of the light is varied to represent the data. We use SFP’s (small form pluggable) or Media Convertors to encode the electrical signal into Light.

3. Signal Transmission

Once the data is encoded as light signals, it is ready for transmission through the fibre optic cable. The core of the fibre cable is where the light travels, surrounded by a cladding layer that reflects the light back into the core. This configuration allows the light to bounce along the core, effectively traveling through the cable.

4. Total Internal Reflection

One of the fundamental principles that enable fibre optic transmission is total internal reflection. This phenomenon occurs when light, travelling through a medium with a higher refractive index (in this case, the core of the fibre), strikes the boundary with a medium of lower refractive index (the cladding) at an angle greater than the critical angle. When this happens, the light is reflected back into the core rather than refracting out of the cable. This ensures that the light remains trapped within the core and continues its journey.

5. Signal Reception

At the receiving end of the fibre optic cable, a photosensitive detector captures the incoming light signals. This detector, often a photodiode, converts the light signals back into electrical signals. The modulation applied to the light signals during encoding is decoded, and the original data is retrieved. A “mated” SFP or Media Convertor does this, and “talks” to the SFP / media converter at the other end of the Fibre.

6. Data Processing

The electrical signals are then processed by the receiving equipment, such as a computer or network device. This processing involves error checking, data recovery, and any necessary signal conditioning to ensure accurate and intact transmitted data.

7. Data Output

Finally, the processed data is made available for use by the end user or device. Whether it’s for internet browsing, streaming, video conferencing, or any other application that relies on high-speed data transmission.

Advantages of Fibre Optic Cabling

Fibre optic cabling offers numerous advantages over traditional copper cables:

1. High-Speed Data Transmission

Fibre optic cables can transmit data at speeds significantly faster than copper cables. Fibre cables can carry high volumes of data over long distances without significant signal degradation.

2. Immunity to Electromagnetic Interference (EMI)

Fibre optic cables are immune to EMI, making them highly reliable in environments with electrical interference. Fibre is particularly handy when lighting is nearby, or industrial machinery is in use. Similarly, fibre signals will not electrically interfere with equipment such as Wireless Units or sensors.

3. Greater Bandwidth

Fibre optic cables have greater bandwidth capacity than copper cables. This means they can support more simultaneous data transmissions, making them ideal for high-demand applications.

4. Longer Distances

Fibre optic cables can transmit data over much longer distances without signal boosters or repeaters. This makes them suitable for connecting remote locations and telecommunications networks. Signals travelling on Singlemode Fibre can travel hundreds of kilometres.

5. Security

Fibre optic cables are more secure than copper cables because they do not emit electromagnetic signals that can be intercepted. This makes them an excellent choice for transmitting sensitive data.

As digital communication continues to grow, so too will the importance of fibre optic cabling in ensuring that data flows swiftly and reliably from one point to another, connecting people and devices across the city, between floors or around the globe.

Are you searching for a reliable data cabling network? Our fully qualified data cabling technicians provide the highest quality of service, and our commitment to customer satisfaction is second to none.Contact Elam for more information.