Abstract

With advancement in the field of atomic scale fabrication and increase in demand for high data traffic, optical communication has become the backbone of modern-day communication. It offers low attenuation, high capacity and low power consumption in a long-haul communication environment. Though optical communication has a lot of advantages, it also gets affected by the detrimental effects like dispersion and nonlinearities. This article presents a detailed analysis on the impact of duobinary and carrier suppressed return to zero (CSRZ) modulation formats on unfavorable nonlinear self-phase modulation. Here, simulations are carried out by using optisystem software, and the performance of the design is measured in terms of bit error rate (BER) and Q factor. Furthermore, fiber Bragg grating (FBG) is used in the receiver end to combat the dispersion caused due the pulse spreading. Finally, a comparison is made between the performances of both the modulation formats.KeywordsFiber nonlinearitiesDuobinary modulationCSRZ modulationM-z modulatorBit error rateQ factor

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