This paper intends to design anartificial model of WDM Optical Network in respect of length, pump power and simple free space optical link which is designed and analysis of several FSO (Free-space optical communication) factors such as Bit Error Rate (BER), Q factor and received power have been measured with regard to the variants in the beam divergence and attenuation. The Simulation process of the System has been done using Optic simulation software to achieve gain enhancement and decrease noise factor of Erbium Doped Fiber Amplifier (EDFA) through optimized fiber length and pump power. This workfocused to construct artificial design and analyses of 16 channels WDM system using EDFA and the influence of irregular atmospheric Motions on the link performance has been inspected by fluctuating beam divergence, atmospheric disturbances and modulation format at the bit rate of 10 Gb/s. As slicing in WDM schemes, in the transmitter channel with the frequency of 1558nm and chip spacing 0.4nm, power value is equal to + 23.5dBm, whereas the optical power meter plus can be used to predict the output power in the form of NRZ modulation, while the input power is produced with a help of CW laser, the gain level has been enriched from 1564nm to 1558nm wavelength band with bit rate of 10GbpS.This system is prepared by using Optic simulation software version 7.
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