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In high speed networks, meeting the targeted performance is largely dependent on the total number and the placement of the optical amplifiers. An efficient design not only cuts down the network cost by minimizing the required number of amplifiers, but also effectively reduces the undesirable fiber nonlinearities and the end-to-end OSNR (Optical Signal-to-Noise Ratio) degradation on the propagating channels. In this paper analysis is done for the effect of optical amplifiers on the performance of ring networks using optsim simulation tool.
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