Performance analysis of BER optimization in WDM systems using EDFA

Muhammad Zafrullah, Muhammad Bilal Iqbal, Muhammad Rameez Asif, Muhammad Khawar Islam

Research output: Contribution to journalArticlepeer-review


Wavelength division multiplexing (WDM) systems, which are widely used in telecommunication, have the advantages of huge bandwidth support and reliability. A performance analysis is presented of a WDM system using an erbium-doped fiber amplifier (EDFA), with specific emphasis on bit error rate (BER) optimization. EDFA parameters, including doped fiber length and pump power, are optimized and performance evaluating parameters for different modulation schemes are observed. Simulation results provide optimized BER, noise figure, and gain flatness values. The WDM system is modeled from 1546 nm to 1558 nm bandwidth to obtain maximum gain uniformity, low noise figure, and low BER. This wavelength range is selected to investigate the 1550 nm wavelength commonly used in the telecommunication industry. Also, that we are using a WDM grid, so multiple channels can be accommodated in this range.

Original languageEnglish
Pages (from-to)1926-1930
Number of pages5
JournalJournal of Modern Optics
Issue number21
Publication statusPublished - 1 Dec 2013


  • bit error rate
  • erbium-doped fiber amplifier
  • noise figure
  • wavelength division multiplexing

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