Abstract
We propose a multimode EDFA for the amplification of orbital angular momentum modes based on circular photonic crystal fiber. The proposed MM-EDFA has a gain larger than 21 dB, DMG less than 0.15 dB, and gain excursion less than 1.2 dB for all the 22 signal OAM modes across C-Band.
© 2023 The Author(s)
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