SPM limited long haul optical transmission in RZ-DPSK for varying input launch power with SMF, Monte Carlo Simulation

In this paper 10Gbps and 20Gb/s optical systems have been studied for return to zero differential phase shift keying. Observations are based on numerical simulations of dispersion compensated transmission link, for the range of optical signal power -2.5 to +2.5,-5 to +5,-10 to +10,-20 to +20dBm.Transmission over distances of four thousands of kilometers has been shown with amplified spontaneous emission (ASE) noise of the inline erbium doped fiber amplifier . Key words: DWDM, OSNR, ASE, RZ, DPSK

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