Title :
Wideband erbium-doped fibre amplifiers with three-stage amplification
Author :
Masuda, H. ; Kawai, S. ; Aida, K.
Author_Institution :
NTT Opt. Network Syst. Labs., Kanagawa, Japan
fDate :
3/19/1998 12:00:00 AM
Abstract :
A novel three-stage amplification configuration with two intermediate gain equalisers is proposed to enlarge the bandwidth of erbium-doped fibre amplifiers. Seamless 3 dB gain bandwidths of 57 nm (1550-1607 nm) with an erbium-doped silica fibre amplifier and 62 nm (1540.5-1602.5 nm) with an erbium-doped fluoride fibre amplifier have been achieved with this configuration
Keywords :
amplification; erbium; fibre lasers; optical communication equipment; 1540.5 to 1607 nm; Er-doped fibre amplifiers; WDM; bandwidth enlargement; doped fluoride fibre amplifier; doped silica fibre amplifier; intermediate gain equalisers; three-stage amplification; wideband fibre amplifiers;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19980432
