Author/Authors :
P.K.A.، Wai, نويسنده , , H.Y.، Tam, نويسنده , , B.O.، Guan, نويسنده , , S.Y.، Liu, نويسنده , , N.، Sugimoto, نويسنده ,
Abstract :
The demonstration of a 253-cm-long lanthanum-codoped Bi/sub 2/O/sub 3/-based erbium-doped fiber which provides gain of greater than 20 dB and noise figure less than 6.7 dB to 142 dense wavelength-division-multiplexing channels simultaneously over an extended wavelength range of 58 nm from 1554 to 1612 nm is reported. The 3-dB (gain of 17-20 dB) bandwidth of the erbium-doped fiber amplifier is 54 nm when it is pumped with 350 mW of 1480nm light. The power conversion efficiency of the fiber is about 54%.
