High gain characteristics of an erbium-doped fiber amplifier pumped in the 800 nm band

Yasuo Kimura, Eiji Yoshida, Masataka Nakazawa

研究成果: Article査読

2 被引用数 (Scopus)

抄録

The gain characteristics of an erbium-doped fiber amplifier pumped in the 800 nm band have been investigated in detail. The fiber has a dual shape core and the erbium ions are doped only in the inner core to improve the pumping efficiency. The most efficient pumping wavelength is around 820 nm which is determined by the trade off between the decrease in excited state absorption and the decrease in the absorption coefficient. This pumping wavelength makes it possible to achieve an optical gain as high as 40 dB. The noise figures of Er3+-doped fiber amplifiers pumped in the 800 nm band are 4-5 dB in the 1.5 μm signal wavelength region.

本文言語English
ページ(範囲)1995-2001
ページ数7
ジャーナルJapanese journal of applied physics
30
9
DOI
出版ステータスPublished - 1991 9月
外部発表はい

ASJC Scopus subject areas

  • 工学(全般)
  • 物理学および天文学(全般)

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