Wp. Zhang et al., DISTORTION OF A MODULATED SIGNAL BY MULTIWAVE MIXING IN AN ERBIUM-DOPED-FIBER AMPLIFIER, Journal of the Optical Society of America. B, Optical physics, 11(7), 1994, pp. 1277-1282
We analyze the sideband multiwave mixing process of an audio-frequency
-modulated signal in an erbium-doped-fiber amplifier. The nearly reson
ant interaction of an audio-frequency-modulated signal with the doped
erbium ions results in multiwave mixing, which induces the generation
of new sideband frequencies. We show that the input signal is distorte
d by such a multiwave mixing process. The condition to reduce the dist
ortion of an input modulated signal in an erbium-doped-fiber amplifier
is evaluated.