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Performance analysis of nonlinear optically amplified IM/DD systems with forward error correction

In this paper, a nonlinear, optically amplified intensity modulated direct detection (IM/DD) system model with forward error correction (FEC) is presented, where the FEC scheme is based on Reed-Solomon (255,239) coding; the system performance is numerically evaluated and the dependence of FEC coding gain and transmission penalty on system parameters is investigated. The results show that FEC can greatly improve the system performance regardless of changes in system parameters.