Title :
Ultrawide-band La-codoped Bi/sub 2/O/sub 3/-based EDFA for L-band DWDM systems
Author :
Guan, B.O. ; Tam, H.Y. ; Liu, S.Y. ; Wai, P.K.A. ; Sugimoto, N.
Author_Institution :
Dept. of Electr. Eng., Hong Kong Polytech. Univ., China
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 1480-nm light. The power conversion efficiency of the fiber is about 54%.
Keywords :
bismuth compounds; erbium; lanthanum; optical communication equipment; optical fibre amplifiers; optical pumping; wavelength division multiplexing; 1480 nm; 1554 to 1612 nm; 17 to 20 dB; 20 dB; 253 cm; 350 mW; 54 percent; 6.7 dB; Bi/sub 2/O/sub 3/:Er,La; L-band DWDM systems; bandwidth; dense wavelength-division-multiplexing channels; extended wavelength range; gain; lanthanum-codoped Bi/sub 2/O/sub 3/-based erbium-doped fiber; noise figure; power conversion efficiency; ultrawide-band La-codoped Bi/sub 2/O/sub 3/-based EDFA; Bandwidth; Bismuth; Erbium-doped fiber amplifier; Glass; L-band; Optical fiber communication; Optical fiber devices; Optical fibers; Silicon compounds; Wavelength division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2003.818644
