Highly efficient 978 nm dipole-pumped erbium-doped fibre amplifier with 24 dB gain

作者： R.S. Vodhanel , R.I. Laming , V. Shah , L. Curtis , D.P. Bour

DOI: 10.1049/EL:19890928

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摘要: We report an Er3+-doped fibre amplifier pumped with a strained InGaAs/A lGaAs quantum-well diode laser operating at 978nm. Efficient optical coupling was achieved wedge-tipped fibre. An gain of 24dB 1535nm obtained only 6.2mW pump power, corresponding to 3.9dB/mW power. This is the highest efficiency for fiber reported date.