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Optical Fibre

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Contains the notes of Chapter Optical fibre.
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   󰁆󰁉󰁂󰁒󰁅 󰁏󰁐󰁔󰁉󰁃󰁓  󰁓󰁹󰁬󰁬󰁡󰁢󰁵󰁳   󰁂󰁡󰁳󰁩󰁣 󰁰󰁲󰁩󰁮󰁣󰁩󰁰󰁬󰁥 󰁯󰁦 󰁯󰁰󰁴󰁩󰁣󰁡󰁬 󰁦󰁩󰁢󰁲󰁥, 󰁳󰁴󰁥󰁰 󰁩󰁮󰁤󰁥󰁸 󰁡󰁮󰁤 󰁧󰁲󰁡󰁤󰁥󰁤 󰁩󰁮󰁤󰁥󰁸 󰁦󰁩󰁢󰁥󰁲󰁳   󰁰󰁡󰁲󰁡󰁭󰁥󰁴󰁥󰁲󰁳 󰁯󰁦 󰁯󰁰󰁴󰁩󰁣󰁡󰁬 󰁦󰁩󰁢󰁥󰁲󰁳, 󰁡󰁣󰁣󰁥󰁰󰁴󰁡󰁮󰁣󰁥 󰁡󰁮󰁧 󰁥, 󰁡󰁣󰁣󰁥󰁰 󰁡󰁮󰁣󰁥 󰁣󰁯󰁮󰁥, 󰁮󰁵󰁭󰁥󰁲 󰁣󰁡 󰁡󰁰󰁥󰁲 󰁵󰁲󰁥, 󰁮󰁯󰁲󰁭󰁡󰁬󰁩󰁺󰁥󰁤 󰁦󰁲󰁥󰁱󰁵󰁥󰁮󰁣󰁹, 󰁎󰁯. 󰁯󰁦 󰁭󰁯󰁤󰁥󰁳,   󰁁󰁴󰁴󰁥󰁮󰁵󰁡󰁴󰁩󰁯󰁮 󰁩󰁮 󰁯󰁰󰁴󰁩󰁣󰁡󰁬 󰁦󰁩󰁢󰁥󰁲󰁳, 󰁩󰁮󰁴󰁥󰁲󰁭󰁯󰁤󰁡󰁬 󰁡󰁮󰁤 󰁩󰁮󰁴󰁲󰁡󰁭󰁯󰁤󰁡󰁬 󰁤󰁩󰁳󰁰󰁥󰁲󰁳󰁩󰁯󰁮 (󰁮󰁯 󰁤󰁥󰁲󰁩󰁶󰁡󰁴󰁩󰁯󰁮), 󰁯󰁰󰁴󰁩󰁣󰁡󰁬 󰁦󰁩󰁢󰁥󰁲󰁳 󰁩󰁮 󰁣󰁯󰁭󰁭󰁵󰁮󰁩󰁣󰁡󰁴󰁩󰁯󰁮.  󰁉󰁮󰁴󰁲󰁯󰁤󰁵󰁣󰁴󰁩󰁯󰁮   A󰁮 󰁯󰁰󰁴󰁩󰁣󰁡󰁬 󰁦󰁩󰁢󰁥󰁲 (󰁯󰁲 󰁦󰁩󰁢󰁲󰁥) 󰁩󰁳 󰁡 󰁧󰁬󰁡󰁳󰁳 󰁯󰁲 󰁰󰁬󰁡󰁳󰁴󰁩󰁣 󰁦󰁩󰁢󰁥󰁲 󰁤󰁥󰁳󰁩󰁧󰁮󰁥󰁤 󰁴󰁯 󰁧󰁵󰁩󰁤󰁥 󰁬󰁩󰁧󰁨󰁴 󰁡󰁬󰁯󰁮󰁧 󰁩󰁴󰁳 󰁬󰁥󰁮󰁧󰁴󰁨 󰁢󰁹 󰁣󰁯󰁮󰁦󰁩󰁮󰁩󰁮󰁧 󰁡󰁳 󰁭󰁵󰁣󰁨 󰁬󰁩󰁧󰁨󰁴 󰁡󰁳 󰁰󰁯󰁳󰁳󰁩󰁢󰁬󰁥 󰁩󰁮 󰁡 󰁰󰁲󰁯󰁰󰁡󰁧󰁡󰁴󰁩󰁮󰁧 󰁦󰁯󰁲󰁭. An optical fiber is essentially a waveguide for light   󰁔 󰁥󰁹 󰁡󰁲󰁥 󰁡󰁲󰁲󰁡󰁮󰁧󰁥 󰁩󰁮 󰁵󰁮 󰁥󰁳 󰁣󰁡 󰁥 󰁯󰁰󰁴󰁩󰁣󰁡 󰁣󰁡 󰁥󰁳 󰁡󰁮 󰁵󰁳󰁥 󰁴󰁯 󰁴󰁲󰁡󰁮󰁳󰁭󰁩󰁴 󰁬󰁩󰁧󰁨󰁴 󰁳󰁩󰁧󰁮󰁡󰁬󰁳 󰁯󰁶󰁥󰁲 󰁬󰁯󰁮󰁧 󰁤󰁩󰁳󰁴󰁡󰁮󰁣󰁥󰁳.   B󰁡󰁳󰁥󰁤 󰁯󰁮 󰁴󰁨󰁥 󰁰󰁲󰁩󰁮󰁣󰁩󰁰󰁬󰁥 󰁯󰁦 󲀜󰁔󰁯󰁴󰁡󰁬 󰁉󰁮󰁴󰁥󰁲󰁮󰁡󰁬 󰁒󰁥󰁦󰁬󰁥󰁣󰁴󰁩󰁯󰁮󲀝   󰁏󰁰󰁴󰁩󰁣󰁡󰁬 󰁦󰁩󰁢󰁥󰁲󰁳 󰁡󰁲󰁥 󰁷󰁩󰁤󰁥󰁬󰁹 󰁵󰁳󰁥󰁤 󰁩󰁮 󰁦󰁩󰁢󰁥󰁲󰀭󰁯󰁰󰁴󰁩󰁣 󰁣󰁯󰁭󰁭󰁵󰁮󰁩󰁣󰁡󰁴󰁩󰁯󰁮, 󰁷󰁨󰁩󰁣󰁨 󰁰󰁥󰁲󰁭󰁩󰁴󰁳 󰁴󰁲󰁡󰁮󰁳󰁭󰁩󰁳󰁳󰁩󰁯󰁮 󰁯󰁶󰁥󰁲 󰁬󰁯󰁮󰁧󰁥󰁲 󰁤󰁩󰁳󰁴󰁡󰁮󰁣󰁥󰁳 󰁡󰁮󰁤 󰁡󰁴 󰁨󰁩󰁧󰁨󰁥󰁲 󰁤󰁡󰁴󰁡 󰁲󰁡󰁴󰁥󰁳 󰁴󰁨󰁡󰁮 󰁯󰁴󰁨󰁥󰁲 󰁦󰁯󰁲󰁭󰁳 󰁯󰁦 󰁷󰁩󰁲󰁥󰁤 󰁡󰁮󰁤 󰁷󰁩󰁲󰁥󰁬󰁥󰁳󰁳 󰁣󰁯󰁭󰁭󰁵󰁮󰁩󰁣󰁡󰁴󰁩󰁯󰁮󰁳. 󰁔󰁨󰁥 󰁬󰁩󰁧󰁨󰁴󰀭󰁧󰁵󰁩󰁤󰁩󰁮󰁧 󰁰󰁲󰁩󰁮󰁣󰁩󰁰󰁬󰁥 󰁢󰁥󰁨󰁩󰁮󰁤 󰁯󰁰󰁴󰁩󰁣󰁡󰁬 󰁦󰁩󰁢󰁥󰁲󰁳 󰁷󰁡󰁳 󰁦󰁩󰁲󰁳󰁴 󰁤󰁥󰁭󰁯󰁮󰁳󰁴󰁲󰁡󰁴󰁥󰁤 󰁩󰁮 󰁢󰁹 󰁄󰁡󰁮󰁩󰁥󰁬 󰁃󰁯󰁬󰁬󰁡󰁤󰁯󰁮 󰁡󰁮󰁤  󰁊󰁡󰁱󰁵󰁥󰁳 󰁂󰁡󰁢󰁩󰁮󰁥󰁴  󰁩󰁮 󰁴󰁨󰁥 󰀱󰀸󰀴󰀰󰁳󰀬 󰁷󰁩󰁴󰁨 󰁉󰁲󰁩󰁳󰁨 󰁩󰁮󰁶󰁥󰁮󰁴󰁯󰁲  󰁊󰁯󰁨󰁮 󰁔󰁹󰁮󰁤󰁡󰁬󰁬  󰁯󰁦󰁦󰁥󰁲󰁩󰁮󰁧 󰁰󰁵󰁢󰁬󰁩󰁣 󰁤󰁩󰁳󰁰󰁬󰁡󰁹󰁳 󰁵󰁳󰁩󰁮󰁧 󰁷󰁡󰁴󰁥󰁲󰀭󰁦󰁯󰁵󰁮󰁴󰁡󰁩󰁮󰁳 󰀮  A fibreoptic cable consists of glass or plastic threads, which are protected by the thin polyvinyl chloride (PVC) or metal sheath. The central part of optical fibeis known as core, which is surrounded by cladding. These layers are further protected by PVC sheath 1.Core is made up of thin glass or plastic layer through which light travels. surrounding the core and reflects back the light into the core. 3.Sheath is plastic coating that protects fibrefrom any damage or other environmental conditions. The range of the core diameter is 5-100 micrometer.The cladding diameter isusually125 um and sheath diameter is about 250 um.Core Refractive IndexIs slightly greater than that of Cladding
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