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- Title
Improvement of differential modal gain in few‐mode fibre amplifier by employing ring‐core erbium‐doped fibre.
- Authors
Ono, H.; Hosokawa, T.; Ichii, K.; Matsuo, S.; Yamada, M.
- 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.
- Publication
Electronics Letters (Wiley-Blackwell), 2015, Vol 51, Issue 2, p172
- ISSN
0013-5194
- Publication type
Article
- DOI
10.1049/el.2014.3411