High gain Er 3+ -doped fibre amplifier pumped by 820nm GaAlAs laser diodes
- 21 June 1990
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 26 (13) , 948-949
- https://doi.org/10.1049/el:19900618
Abstract
An optical gain of 22 dB at 1.535 μm is obtained in an Er3+- doped fibre amplifier for a total pump power of 54 mW. The Er3+ doping concentration is 34 ppm, and the pumping source is GaAlAs laser diodes at 820 nm. By using an Er3+ fibre with a doping concentration of 390 ppm, the maximum gain is as high as 29.4 dB for a pump power of 83 mW.Keywords
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