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How is glass fibre material in optical fibres used?
Glass fibre material in optical fibres:
Silica is the generally used materials for the manufacture of a glass fibre. The glass utilized in a fibre-optic cable is ultra pure, silicon, ultra transparent, silicon dioxide or fused silica.
Glass fibres are prepared by fusing silica and metal oxides. By a pure glass fibre optic cable consists of a glass core and a glass cladding and is far the most extensively used into fibre. Throughout the glass fibre-optic cable fabrication procedure, impurities are purposely added to the pure glass so as to acquire the desired indices of refraction required to guide light.
Illustrations:
a. GeO2– SiO2 core, SiO2 cladding
b. SiO2core, P2O3-SiO2 cladding
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