Vapor Phase Deposition method for optical fiber grade glass preparation

Vapor Phase deposition method for optical fiber grade glass preparation
This technique is used for preparing the extremely pure optical glasses.It is now used to produce silica based fiber with a very low attenuation(a fabrication process in which a material is stretched out into a thin shape),highest transparency with optimal optical properties.
Ingredients are volatile organic compounds SiCl₄, GeCl₄,SiF₄,BCl₄,O₂,BBr_3,PoCl₃ and dopants (non silica ) are used to enhance the property of refractive index are TiO₂,GeO₂,P₂O₅,Al₂O₃,B₂O₃,F .

Vapor phase deposition

Flame Hydrolysis                                                                           Chemical Vapor Deposition Vapor Axial Deposition     Outside                           vapour phase Oxidation                                                  Modified chemical vapor phase                                                           Plasma- activate chemical