Fibre
optic cables have been known for about 20 years, and in this short amount of
time, it has almost taken over the entire communications industry. The use of
fibre optic cables are so important to the availability of the internet that it
cannot function with the old type of cables used as modems have changed to be
able to function in union with the fibre optics. One of the reasons for its popularity
is because of the cost effectiveness of fibre optic cables for long distance
communication when compared to the original copper cables.
When you are
dealing with technology, it is important that you have as much information as
possible on the product in order to make an informed decision on how it will
benefit your business. Here is some background information on fibre optic
cables.
A fibre optic
cable can be compared to a very long straw. The inside of the straw will have a
mirror coating. With the mirror coating, when you look through the one end of
the pipe and another person shines a torch from the other end, the light will
reflect all the way to your side.
If the torch
would be switched on and off at regular intervals, say with Morse code, your friend
on the other side will be able to read the code by the light reflecting off the
mirrored sides.
Fibre optic
cable works in the same way, except that it is coated with glass. The glass
that is used is of the purest quality, causing the same amount of reflection
that a mirror would be able to. The glass itself is in strands that are the
width of a human hair and it is then coated with plastic.
The function of
the plastic covering is to create a mirrored image from the glass strand within
the covering. This creates reflection from the inside and thereby mimics the
reflection of glass. The light that then travels through the glass fibres stay
inside the fibre as it directly bounces off the sides of the plastic covering.
Digital signals
are changed to voice signals through a fibre optic cable, therefore relating in
a conversation being possible. The transmission of a laser at the one end of
the fibre cable relates to transmission of billions of bits per second. This
laser turns off billions of times per second, relating in the possibility of
communication.
These fibre
optic cables can transmit signal from a distance within a room up to about 100
km. The wonderful thing about the quality of the fibre optic cable is that,
even though the distance is 100km, you will get the same high quality
communication as you would if the distance between the two points of
communication is within one room.
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