DocumentCode
1328608
Title
Gain-shifted thulium-doped fibre amplifiers employing novel high concentration doping technique
Author
Aozasa, S. ; Sakamoto, T. ; Kanamori, T. ; Hoshino, K. ; Shimizu, M.
Author_Institution
NTT Photonics Lab., Ibaraki, Japan
Volume
36
Issue
5
fYear
2000
fDate
3/2/2000 12:00:00 AM
Firstpage
418
Lastpage
419
Abstract
A novel high thulium concentration doping technique is proposed for shifting the gain band in thulium-doped fibre amplifiers (TDFAs). The gain peak shifts from 1473 to 1505 nm when the Tm3+ concentration is increased from 2000 to 8000 ppm. The authors have achieved gains of >18 dB and a noise figure (NF) of <7 dB from 1480 to 1510 nm (30 nm bandwidth) for a total pump power of 500 mW
Keywords
gain measurement; laser beams; laser noise; laser variables measurement; optical fibre amplifiers; optical pumping; population inversion; thulium; 1473 to 1505 nm; 1480 to 1510 nm; 18 dB; 500 mW; 7 dB; Tm-doped fibre amplifiers; Tm3+ concentration; bandwidth; gain band; gain peak; gain peak shift; gain-shifted Tm-doped fibre amplifiers; high concentration doping technique; laser gain; noise figure; total pump power;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:20000332
Filename
840072
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