DocumentCode :
1503890
Title :
Lanthanum codoped erbium fibre amplifier
Author :
Nakazawa, Masataka ; Kimura, Yuichi
Author_Institution :
NTT Transmission Syst. Labs., Lightwave Commun. Lab., Ibaraki-Ken, Japan
Volume :
27
Issue :
12
fYear :
1991
fDate :
6/6/1991 12:00:00 AM
Firstpage :
1065
Lastpage :
1067
Abstract :
A lanthanum codoped erbium fibre amplifier (La-Er/GeO2/SiO2) has been investigated by comparing such an amplifier with Al-Er/GeO2/SiO2 and Er/GeO2/SiO2 EDFAs. A gain of more than 35 dB at a wavelength of 1.535 mu m was obtained for 1.48 mu m pump power of 35 mW, which was the highest gain among them. The gain spectral profile was moderately flattened at around 1.552 mu m and the gain peaks at 1.535 and 1.552 mu m shifted 0.5-1 nm towards the shorter wavelength region.
Keywords :
erbium; fibre lasers; germanate glasses; lanthanum; silicon compounds; 1.48 to 1.535 micron; 35 dB; 35 mW; GeO 2-SiO 2:La,Er; La-Er codoped fibre; fibre amplifier; optical fibres; pump power;
fLanguage :
English
Journal_Title :
Electronics Letters
Publisher :
iet
ISSN :
0013-5194
Type :
jour
DOI :
10.1049/el:19910661
Filename :
76199
Link To Document :
https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=1503890
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