DocumentCode :
27529
Title :
Improvement of differential modal gain in few-mode fibre amplifier by employing ring-core erbium-doped fibre
Author :
Ono, H. ; Hosokawa, T. ; Ichii, K. ; Matsuo, Shoichiro ; Yamada, Makoto
Author_Institution :
NTT Device Technol. Labs., NTT Corp., Atsugi, Japan
Volume :
51
Issue :
2
fYear :
2015
fDate :
1 22 2015
Firstpage :
172
Lastpage :
173
Abstract :
The differential modal gain (DMG) in a few-mode erbium-doped fibre amplifier (FM-EDFA) is successfully improved by employing a ring-core FM erbium-doped fibre (RC-EDF). The DMGs between LP01 and LP11 mode signals in the FM-EDFA with the RC-EDF are 1.8 and 1.6 dB for LP01 and LP11 mode pumping, respectively, whereas those in a FM-EDFA with a conventional step-index FM EDF are 9.2 and 6.1 dB, indicating 7.4 and 4.5 dB DMG improvement for LP01 and LP11 mode pumping, respectively.
Keywords :
erbium; laser beams; laser modes; optical fibre amplifiers; optical pumping; LP01 mode pumping; LP01 mode signals; LP11 mode pumping; LP11 mode signals; differential modal gain; few-mode fibre amplifier; ring-core erbium-doped fibre;
fLanguage :
English
Journal_Title :
Electronics Letters
Publisher :
iet
ISSN :
0013-5194
Type :
jour
DOI :
10.1049/el.2014.3411
Filename :
7014476
Link To Document :
https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=27529
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