Title : 
Record-efficient, resonantly-pumped, Er-doped singlemode fibre amplifier
         
        
            Author : 
Dubinskii, M. ; Zhang, J. ; Ter-Mikirtychev, V.
         
        
            Author_Institution : 
US Army Res. Lab., Adelphi, MD
         
        
        
        
        
        
        
            Abstract : 
An 85% optical-to-optical efficient, single-frequency performance of resonantly-pumped (at 1476 nm) Yb-free, Er-doped, singlemode fibre amplifier at 1560 nm is reported. The diffraction-limited, single-frequency amplifier is believed to have the highest optical-to-optical efficiency ever reported for Er-doped fibre amplifiers.
         
        
            Keywords : 
erbium; optical fibre amplifiers; optical pumping; Er-doped singlemode fibre amplifier; optical-to-optical efficiency; single-frequency amplifier;
         
        
        
            Journal_Title : 
Electronics Letters
         
        
        
        
        
            DOI : 
10.1049/el.2009.0505