Title :
High-power erbium-doped-fiber amplifiers operating in the saturated regime
Author :
Laming, R.I. ; Townsend, J.E. ; Payne, D.N. ; Meli, F. ; Grasso, G. ; Tarbox, E.J.
Author_Institution :
Dept. of Electron. & Comput. Sci., Southampton Univ., UK
fDate :
3/1/1991 12:00:00 AM
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 :
erbium; fibre lasers; optical pumping; optical saturation; 100 mW; 54 mW; 59 percent; 93 percent; 978 nm; Er doped fibre amplifiers; LANs; amplified signal; point-to-point digital links; power amplifiers; power budget restrictions; pump power; pump-to-signal conversion efficiencies; quantum efficiency; saturated regime; spectral-gain characteristics; video distribution networks; Bandwidth; Erbium-doped fiber amplifier; High power amplifiers; Optical amplifiers; Optical fiber testing; Optical fibers; Power amplifiers; Power generation; Power measurement; Wavelength measurement;
Journal_Title :
Photonics Technology Letters, IEEE
