fibre optics

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fibre optics

The science and technology of the transmission of light, including coherent laser light, along optical fibres and its applications. This has become important in medicine and surgery as it provides a method of internal illumination and examination through a natural orifice or through a very small artificial opening (endoscopy). Optical fibres can guide light around corners by virtue of the principle of total internal reflection. Bundles of fibres are used.