Title :
Low noise broadband tellurite-based Er3+-doped fibre amplifiers
Author :
Mori, Alessandro ; Kobayashi, Kaoru ; Yamada, Makoto ; Kanamori, Toshiyuki ; Oikawa, K. ; Nishida, Yoshiharu ; Ohishi, Yasutake
Author_Institution :
Opto-Electron. Labs., NTT Corp., Ibaraki
fDate :
4/30/1998 12:00:00 AM
Abstract :
The authors have succeeded in fabricating low-loss tellurite-based Er3+-doped fibre for low noise 1.5 μm broadband EDFAs by developing high-purity TeO2 as a raw material. The background loss of the fibre is reduced to 0.054 dB/m at 1200 nm. A 20 dB signal bandwidth of 83 nm from 1528 to 1611 nm, and a low flat noise figure of <6.5 dB from 1539 to 1624 nm can be obtained for a tellurite-based EDFA using the low-loss fibre
Keywords :
erbium; fibre lasers; laser noise; laser transitions; optical communication equipment; optical fibre losses; tellurium compounds; 1.5 micron; 1200 to 1624 nm; 6.5 dB; Er3+ doped fibre amplifiers; background loss reduction; broadband EDFA; high-purity TeO2; low noise broadband fibre amplifiers; low-loss fibre; tellurite-based fibre amplifiers;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19980674
