50.1 MB (1.3 MB compressed)
4071 x 4301 pixels
34.5 x 36.3 cm ⏐ 13.6 x 14.3 in (300dpi)
KEVIN CURTIS / SCIENCE PHOTO LIBRARY KEVIN CURTIS / SCIENCE PHOTO LIBRARY
Optical fibres emitting light. These fibres are used for transmitting data in the form of light. They are usually made from flexible glass that has a high refractive index. Each fibre consists of a core with an outer protective layer (cladding) that has a lower refractive index than the core. Light travelling through the fibre is contained within the core because of total internal reflection at the core/cladding boundary. This allows data to be transmitted over long distances with little information loss.
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