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A few mode EDFA with different pumping schemes: performance evaluation

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Abstract

The performance of few-mode (FM) erbium doped fiber amplifiers (EDFAs) with different pumping configurations is investigated and evaluated. An improvement in both gain and noise figure is achieved with a bidirectional core pumping FM-EDFA using unequal pump power with pump wavelengths of 980 nm and 1480 nm for forward and backward pumping, respectively. Moreover, the bidirectional pumping FM-EDFA is studied in case of equal pumping wavelength at 980 nm and different pump powers. Then, the system performance for the case of 6-spatial modes is tested for backward core pumping at 980 nm. The backward core pumping achieved a high modal gain with a low noise figure compared to bidirectional core pumping. Meanwhile, we report a cladding-pumped 6-modes EDFA with higher modal gain ~ 35 dB over the C-band, zero differential modal gain and low noise figure using both backward and bidirectional pumping.

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Authors and Affiliations

  1. Photonics Group, Electrical Engineering Department, Alexandria University, Alexandria, 21544, Egypt

    Nihal M. Anwar, Ziad A. El-Sahn & El-Sayed A. El-Badawy

  2. Electronics and Communications Engineering Department, College of Engineering and Technology, Arab Academy for Science, Technology and Maritime Transport, P.O.B. 1029, AbouKir, Alexandria, Egypt

    Moustafa H. Aly

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  1. Nihal M. Anwar
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  2. Ziad A. El-Sahn
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  3. El-Sayed A. El-Badawy
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  4. Moustafa H. Aly
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Correspondence to Moustafa H. Aly.

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Anwar, N.M., El-Sahn, Z.A., El-Badawy, ES.A. et al. A few mode EDFA with different pumping schemes: performance evaluation. Opt Quant Electron 52, 109 (2020). https://doi.org/10.1007/s11082-020-2226-9

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