Hand holding spray of polymer optical fibres

Hand holding spray of polymer optical fibres

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Credit: JOHN WALSH/SCIENCE PHOTO LIBRARY

Caption: Hand holding a spray of polymer optical fibres. These fibres have a core of perspex and a thin outer coating of polymer of a lower refractive index, which prevents light "leaking" from the fibre wall because it gives total internal reflection. The optical fibres were obtained from a novelty domestic lamp of the "horsetail" type.

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Keywords: communications, fibre optics, optical fibres, polymer, technology

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