Saturday, November 30, 2013

Fibre optics is the transmission of light through fibres or thin glass rods with a high refractive index over a distance.

It is based on the principle of total internal reflection. This work out flow that is travelling thru the core hits the outside surface at an angle of incidence greater than the critical angle for that material, so that all the joyous is reflected back into the case without loss. To stop light scattering the core is clad with a glass of a much lower refractive index. Fibre optics is utilise in galore(postnominal) different areas of society. In medicine it takes the form of an endoscope. This is an instrument that jackpot be inserted into a patient via the mouth to look inside. In put up to outwit an image light is shone downward(a) the endoscope and reflected back up the bundle of fibres and viewed through an eyepiece by the endoscopist. Originally endoscopes were only(prenominal) used for diagnosis. However they fuel now be used to perform procedures such as biopsies and laser therapy. most importantly fibre optics has make many advances in telecommunications. ocula r Cables are everlastingly replacing electrical (coaxial cables which are made of copper).
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The Advantage of ocular over copper cables are they loafer suffer higher(prenominal) amounts of information and faster, undersea optical cables that have a diam the size of a golf ball can carry 62,500 pages a second or 200,000 telephone calls at once. too the light can travel a long-run blank until repeaters are used. Fibre optic repeaters are normally determined 100km apart compared to 1.5 km for electrical systems. If you want to get a full essay, order it on our website: BestEssayChea! p.com

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