Abstract
This study aims at designing optic fibers out of the doped silica and studying the properties of the manufactured optic fibers and employing them in different practical processes . Three types of doped silica will be chosen :
(13.5 m / 0 GeO2, 86.5 m / 0 SiO2)
( 9.1 m / 0 GeO2,7.7m/0B2O3, 83.2 m / 0 SiO2)
( 4.03 m / 0 GeO2, 9.7m/0B2O3, 86.27m / 0 SiO2)
By using sellmeire equation the refraction index will be calculated for the materials used in manufacturing optic fibers. The study shows that the materials (13.5 m / 0 GeO2, 86.5 m / 0 SiO2) has the highest index of refraction among the other materials by using special equation, the properties of optic fibers has been examined ( the numerical aperture , the critical angle ,…) as a function of wave length. The result shows that the core optic fiber has the doped silica (13.5 m / 0 GeO2, 86.5 m / 0 SiO2) while the clad has the material (9.1 m / 0 GeO2,7.7m/0B2O3, 83.2 m / 0 SiO2) this should be of suitable properties to act as a receiving fiber. The fiber of the core materials (13.5 m / 0 GeO2, 86.5 m / 0 SiO2) while the glade has the materials (4.03 m / 0 GeO2, 9.7m/0B2O3, 86.27m / 0 SiO2) have properties which enabled it to act as a sending fiber with various wave length.
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