merits of infomation transfer - optical fibre Vs copper cable
...nabling the light (information) to keep travelling. This is due to the cladding which surrounds the core which is made of a material which reflects the light back into the core. It’s like a periscope where you have mirrors to reflect light around corners. Parts of a single optical fibre The concept of total internal reflection is used in the cable to keep the signal going. The cladding does not absorb what it reflects and it reflects the light beams at an angle so it keeps on travelling forward and can never reflect back. Optic fibre systems have many properties which are a great improvement to the out dated metallic based communication systems. Fibre optic cables have a low attenuation and a superior signal integrity which allow for a much longer interval of signal transmission and enable it to carry massive amounts of information. Optical fibres, using laser generated light, can transmit many more messages at one time than metal cable or microwaves, these cables have a much greater bandwidth than metal cables enabling more data to be carried per second. Optic fibres are a great deal thinner, about one fifth the size of a metal cable, enabling a greater amount of fibres to fit into the one cable creating a higher density cable allowing for more phone or cable television channels to run through the one cable. For example, one optic fibre can carry more information than 300 000 pairs of 14 gauge copper cable. Metal cable methods of communication are diminishing at an immense rate as the more popular, quicker and efficient optical fibre systems take hold. Many local networks and telephone companies are steadily replacing traditional metallic telephone systems with fibre optic cable systems. It’s not hard to see why. Fibre optic technology has many advantages over metallic communication systems. Optical fibres can send information over long distances due to s...