Design and Performance Analysis of Optical Transmission System
نویسندگان
چکیده
In this paper we have discussed a simulated long haul optical transmission system Over the single mode fibre which is prove to the liner chromatic dispersion as well as Non linearity. Both Parameter have been of great concern as these confine the overall Efficiency of the system. Loop control is commonly chosen as an important component in optical communication system. Loop control is very simple, has a multiplier for increasing the length of optical fibre. E DFA is used for amplification of the signal. The objective of this paper is to analyze the performance of two different modulation scheme i.e RZ and NRZ modulation format at 10GB/s. RZ and NRZ modulation format is the scheme used to avoid intersymbol interference on an optical carrier wave for transmission over optical fibre. Each modulation method has its own advantages and disadvantages for the particular channel conditions. The performance of RZ and NRZ based simulated optical communication system with single channel over single mode fibre is investigated. Based on modulated outputs of RZ and NRZ codes, a comprehensive comparison is developed in terms of Q factor BER , eye diagrams and average input power to establish the merits and demerits of the RZ formats in short as well as long haul optical communication system.
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