Title : 
Dimension-control technique in the VAD process and wholly synthesised single-mode fibre preform
         
        
            Author : 
Sudo, Shunsuke ; Hosaka, Tatsuya ; Horiguchi, M.
         
        
            Author_Institution : 
NTT Electrical Communications Laboratories, Tokai, Japan
         
        
        
        
        
        
        
            Abstract : 
A preform dimension control technique in the VAD process has been developed using chemical dry etching with fluoride gas applied to silica glass particles in an oxyhydrogen flame. Wholly synthesised VAD single-mode fibre preforms have been fabricated using this technique with high adjustment accuracy of outer/core diameter ratio. These preforms have exhibited excellent structural characteristics.
         
        
            Keywords : 
chemical vapour deposition; optical fibres; optical workshop techniques; process control; thickness control; VAD process; chemical dry etching; fluoride gas; high adjustment accuracy; outer/core diameter ratio; oxyhydrogen flame; preform dimension control; silica glass particles; structural characteristics; wholly synthesised single-mode fibre preform;
         
        
        
            Journal_Title : 
Electronics Letters
         
        
        
        
        
            DOI : 
10.1049/el:19860677