Original Amplifier For Mode Division Multiplexing Based On Dual Core Erbium-Doped Fibre And Asymmetric Long-Period-Grating Converters

An original concept of integrated few-mode erbium doped fibre ampli- fier for mode division multiplexing (MDM) reaches nearly zero differ- ential modal gain between two mode groups (8 MDM channels) with more than 20 dB of gain.