Modified differential overlap factor and modal gain equalization criteria-based comparative analysis of 4M-EDFA 980;1480 nm towards identification of a unique erbium doping profile for the 4M-EDFA1480 nm system
Abstract:Space division multiplexing (SDM) based four mode erbium doped fiber amplifier (4M-EDFA) system is explored with 𝐿𝑃 01;980 𝑛𝑚 and 𝐿𝑃 01;1480 𝑛𝑚 pump power respectively. Main objective of this work is reduction in inherent differential modal gain (DMG) and differential spectral gain (DSG) between amplified signal modes 𝐿𝑃 𝑙𝑚 (𝐿𝑃 01 ; 𝐿𝑃 11 ; 𝐿𝑃 21 and 𝐿𝑃 02 ) while maintaining high modal gain. Differential modal noise figure (DMNF) and differential spectral noise figure (DSNF) parameters are… Show more
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