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Abstract:
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In this paper, we build algorithm charts to optimize parameters including signal power per
channel launched fiber, EDFAs gain for improving optic Signal-to-Noise ratio (OSNR) at
optic receiver in Nation-wide terrestrial DWDM cascaded EDFAs Fiber Optic
Communication System (FOCS) where the losses due to OADM, GEQ, Connectors at
intermediate centers lying on the line were considered. Then, algorithm-based numerical
calculating (MathCad propram) is applied in typical system (DWDM Nation-wide FOCS in
Vietnam). Optimized results show that the OSNR at the end of transmission line can be
increased by (2-5)dB in average comparing with that in cases where parameters are chosen
by experience way. |