An optical amplifier comprises first (22) and second (24) lengths of erbium-doped fibre connected in series via an isolator 20 which reduces the transmission of backward-travelling ASE from the second length to the first length when pump power in inputted in to the first length.
申请公布号
US5375010(A)
申请公布日期
1994.12.20
申请号
US19930012043
申请日期
1993.02.01
申请人
UNIVERSITY OF SOUTHAMPTON
发明人
ZERVAS, MICHAEL N.;LAMING, RICHARD I.;PAYNE, DAVID N.
