Title :
High-gain hybrid amplifier consisting of cascaded fluoride-based TDFA and silica-based EDFA in 1458-1540 nm wavelength region
Author :
Sakamoto, T. ; Aozasa, S. ; Yamada, M. ; Shimizu, M.
Author_Institution :
NTT Photonics Labs., NTT Corp., Atsugi, Japan
fDate :
4/3/2003 12:00:00 AM
Abstract :
A hybrid optical fibre amplifier is described that consists of a fluoride-based thulium-doped fibre amplifier and a silica-based erbium-doped fibre amplifier connected in a cascade. The amplifier has a gain of more than 25 dB and a noise figure of less than 9 dB over a wide wavelength region of 1458-1540 nm.
Keywords :
erbium; laser noise; optical fibre amplifiers; thulium; 1458 to 1540 nm; 25 dB; 9 dB; SiO2:Er; amplifier gain; cascade connection; cascaded fluoride-based TDFA; high-gain hybrid amplifier; hybrid optical fibre amplifier; noise figure; silica-based EDFA; wide wavelength region;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20030399
