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      Permanent link:
      https://www.ias.ac.in/article/fulltext/pram/061/01/0093-0097

    • Keywords

       

      Erbium-doped fibre; optical amplifier; L-band erbium-doped fiber amplifier; two-stage erbium-doped fiber amplifier; amplified spontaneous emission

    • Abstract

       

      An experiment on gain enhancement in the long wavelength band erbium-doped fiber amplifier (L-band EDFA) is demonstrated using dual forward pumping scheme in double-pass system. Compared to a single-stage single-pass scheme, the small signal gain for 1580 nm signal can be improved by 13.5 dB. However, a noise figure penalty of 2.9 dB was obtained due to the backward C-band ASE from second stage and the already amplified signal from the first pass that extracting energy from the forward C-band ASE. The maximum gain improvement of 13.7 dB was obtained at a signal wavelength of 1588 nm while signal and total pump powers were fixed at -30 dBm and 92 mW, respectively.

    • Author Affiliations

       

      S W Harun1 N Tamchek1 P Poopalan1 H Ahmad1

      1. Department of Physics, University of Malaya, Kuala Lumpur - 50603, Malaysia
    • Dates

       
  • Pramana – Journal of Physics | News

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