Gl. Cariolaro et al., EXACT PERFORMANCE EVALUATION OF LIGHTWAVE SYSTEMS WITH OPTICAL PREAMPLIFIER, European transactions on telecommunications and related technologies, 5(6), 1994, pp. 757-766
In this paper the performances of a direct-detection receiver with opt
ical doped fiber preamplifier are investigated. All the sources which
contribute to the global noise are taken into account, namely the shot
noise, the excess noise due to the randomness of the gain, the amplif
ied spontaneous emission (ASE) noise, and finally the thermal noise ge
nerated by the receiver. The approach is based on a probabilistic mode
l of the amplifier that enables us to give the complete statistics of
the noises. Comparisons with results previously obtained by different
methods are presented. The effects of the amplifier gain, the spontane
ous emission factor, the optical bandwidth, and the thermal noise on t
he error probability are examined and discussed.