High-power erbium-doped-fiber amplifiers operating in the saturated regime
- 1 March 1991
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 3 (3) , 253-255
- https://doi.org/10.1109/68.79772
Abstract
It is shown that highly saturated, erbium-doped fiber amplifiers (EDFAs) can be employed as efficient power amplifiers. Differential pump-to-signal conversion efficiencies of 59% (quantum efficiency of 93%) can be obtained, resulting in 54 mW (+17.3 dBm) of amplified signal for only 100 mW of pump power at 978 nm. In addition, these amplifiers are shown to have virtually flat spectral-gain characteristics with a 1-dB bandwidth in excess of 38 nm. Operating in this mode, EDFAs are attractive for application as power amplifiers to ease power budget restrictions in point-to-point digital links, video distribution networks, and LANs.Keywords
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