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Transcript of Fibre-optic Communications
What is Fibre-optics?
communication also follows some safety even if they won't shock you. A major benefit of fibre-optic cable is that it doesn't pose a hazard of injury from fire, sparking or electrocution to the user if the fibre-optic cable is damaged, since it utilizes light instead of electricity.
, there are other risks to keep in mind when using optical fiber cables: the light that they transmit isn't visible to the naked eye, but it can still damage your eye vision.
Safety with Fibre-Optics
How does fibre-optics work?
Glass/plastic fibres are used in the cable because light bounces in these materials and reflects inside of them instead of refracting/bending out of the cladding. This is due to the angle at which the light is projected into the cable . This is called
Total Internal Reflection.
By: Brandon, Janki, Zahra
Photo-phone (First use of fibre-optics by Alexander Graham Bell)
Fibre-optic technology has grown tremendously over the years and today it can be found in many places. There are a lot of purposes and uses for
We can find fibre-optic communications in the following:
How are fibre-optics used in modern technology?
Massive undersea fibre-optic cables travel under the Earth's oceans to provide us with our Internet connection. With high demands for fibre-optics in the market, the uses for fibre-optics have also increased. Here is a little video that explains how it is used under sea.
Undersea Fibre-optic Communication
With fibre-optics, the possibilities are endless!
Importance of Fibre-Optics
is traveling from a less dense medium such as air to a medium of greater density such as glass/plastic or vice versa
The angle that the light is shone at is greater than the critical angle
The density of the glass/plastic in the cladding is different from the density of the fibres inside of the core
What is Fibre-Optics?
Thin, transparent glass or plastic strands that transmit data using light (optics)
Cables are made up of one or more optical fibres that make up the core and are protected/insulated in a cladding/casing and a Buffer Coating.
How does data get transmitted?
1. Information (sound, video, or data) is requested by a client (computer).
2. Transmitter connected to the computer decodes required electrical information into pulses of light.
3. Transmitter launches pulses of light at the required angle inside the cable.
4. Total Internal Reflection occurs and light travels inside the cable nearly at the speed of light.
5. Pulses of light are recognized by the server or other computers and a light detecting component such as an optical receiver decodes the pulses of light into electrical information.
6. Process is repeated (the other way around).
Copper Wiring vs. Fibre-optic Communication
Fibre-optic wiring has the added benefit of being lighter than copper wiring, and it is non-conductive (won't short out any power lines, and it also won't attract any lightning strikes).
Fibre-optic Communication has played an important role in the telecommunications industry in our society today.
We use fibre-optics to:
Connect to the world and access information continuously without leaving our home or office. Ever since the expansion of fibre-optics for home and businesses, our lifestyles have changed.
For consumers, fibre-optic communication enables transmissions of entertainment and media such as HDTV, gaming systems, and high-speed Internet access.
With the Internet, people around the world are able to do many things. For example, checking e-mails, doing research, participating in online learning, socializing with family and friends, watching movies/videos on demand, doing banking, and much more. The Internet plays a big role in the advancement of fibre-optic communications around the world.
Several institutions also rely on using the tools and services provided by fibre-optics because of their advantages over copper-wired cables.
Fibre-optics have produced numerous technologies that have modernized the ways in which people around the world communicate.
The Internet is the fastest growing technology today, and this is also possible because of fiber-optics, the thin-like glass wires that carry light signals around the globe.
-UAVs & Drones
Here are some steps you can take when handling
-Wear proper protective eye wear. That includes safety glasses.
-Make sure the work area is well-lit.
-Avoid smoking, eating and drinking in the work area.
-Low signal loss and greater distance
-Immunity and reliability
-No EMI or RFI
Advantages of Fibre-optics:
This is only just some of the things
can do. We haven't even begun to tell you the amazing things fibre-optics has accomplished in modern technology.
Fibre-optics have revolutionized...
long distance phone calls
Fibre-optics is eco-friendly as it does not emit radiation and only carries light.
The only impact is that 80% of all long distance cables for fibre-optics are run underground.
Impact of Fibre-optics on the Environment
Without fibre-optics, the extremely fast speed of the Internet we use today may not be possible.
The information you see on your TV is traveling very quickly from a TV station to your television.
Fibre-optics for the telephone has also been an important invention in the past.
Uses of Fibre-optics in the Medical Industry
Fibre-optics can be used to help doctors and nurses during a surgery. Special new imaging tools have been created with fibre-optics that allow high resolution imaging deep within human (or animal) tissues.
Not only are fibre-optics used for the technological industry but, they also include...
In 1966, the idea of optical fibres was proposed by Charles K. Kao and George Hockham.
Optical Cables were developed in 1970 by the
Corning Glass Works
but they didn't intent on them being used for Communication.
How Does Total Internal Reflection Occur?
Later on, the technology was used to transmit data and to help expand and improve the communications industry
Alexander Graham Bell and his assistant in 1880, transferred sound on a beam of light for the first "Photophone".
As research on this topic increased, more uses for the optical fibres were known and have improved the communication industry greatly today.
Fibre-optic Communication can transmit data in 3 ways:
Half-Duplex - Same Process is followed but both of the computers (clients/servers) that are involved in the exchange of information need a transmitter and a receiver in order to communicate/convert data both ways
Full-Duplex - Same process is used. However, in this transmission, 2 optical fibres and both computers (clients/servers) need a transmitter and a receiver
Simplex - Same process is followed