Abstract
High gain and low noise figure (NF) are desired features of any erbium doped fiber amplifier (EDFA) based configuration. In this paper, the effect of wavelength and bandwidth on amplified spontaneous emission noise power (PASE) for wide-band erbium doped fiber amplifier (W-EDFA) has been discussed in particular. We present the noise figure (NF) as a function of inversion parameter (nsp) for different wavelengths. Finally we presented quantum conversion efficiency (QCE) varying with different pump power and signal power at 980 and 1480nm pumps. We observe that; amplified spontaneous emission noise power (PASE) increases exponentially with the inversion parameter (nsp) and the effect of change wavelengths on a noise figure are a non-significant. The 980nm pumped device offer significant advantages in terms of a much better quantum conversion efficiency performance than 1480nm pumped.
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