Title : 
Fabrication of polarisation-maintaining [3Ã\x973] single-mode-fibre couplers
         
        
        
            Author_Institution : 
NTT Ibaraki Electrical Communication Laboratory, Tokai, Japan
         
        
        
        
        
        
        
            Abstract : 
[3Ã3] fused fibre couplers have been fabricated with polarisation-maintaining and absorption-reducing (PANDA) fibres. The couplers can hold linear polarisation along the principal axis of the fibre branches, showing an extinction ratio better than ¿15 dB.
         
        
            Keywords : 
light polarisation; optical couplers; optical fibres; optical workshop techniques; PANDA fibres; absorption reducing fibres; extinction ratio; fused fibre couplers; linear polarisation; optical fibres; polarisation maintaining fibres; single-mode-fibre couplers;
         
        
        
            Journal_Title : 
Electronics Letters
         
        
        
        
        
            DOI : 
10.1049/el:19830532