H. Ono et al., SIGNAL OUTPUT CHARACTERISTICS OF 1.58-MU-M BAND GAIN-FLATTENED ER3-DOPED FIBER AMPLIFIERS FOR WDM SYSTEMS(), Electronics Letters, 34(15), 1998, pp. 1513-1514
The output characteristics of 1.58 mu m band gain-flattened Er3+-doped
fibre amplifiers (EDFAs) for wavelength division multiplexing (WDM) s
ystems are investigated. It is found that the total output signal powe
r is uniquely determined by the input signal power and the average sig
nal gain of each WDM channel, which is determined by EDF length. It is
also found that there is a trade-off between the power conversion eff
iciency (PCE) and the noise figure. The PCE for low-noise operation is
similar to 45-65%.