The influences of fiber nonlinear effects on 16×10 Gbit/s system are simulated and studied. From the simulation
the following conclusions are drawn: (1) SPM and XPM effects existing in G.652 fiber are main reasons for the irregular changes of system BER versus the input-fiber-power; (2) if the input-fiber-power is less than 16 dBm and larger than 9 dBm