A Multi-Layer Erbium-Doped Air-Hole-Assisted Few-Mode Fiber with Ultra-Low Differential Modal Gain

The air-hole assisted few-mode fiber (AH-FMF) enables modal intensity balance and offers a profound prospect in gain equalization with the combination of adaptive ion doping. In this paper, we proposed an AH-FM-EDF with a multi-layered erbium doping profile. In AH-FM-EDF, due to the central air hole...

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Hlavní autoři:	Zhiqi Li, Li Pei, Jingjing Zheng, Jianshuai Wang, Wenxuan Xu, Tigang Ning, Jing Li
Médium:	Artigo
Jazyk:	Inglês
Vydáno:	MDPI AG 2022-04-01
Edice:	Photonics
Témata:	mode division multiplexing (MDM) air-hole assisted few-mode erbium-doped fiber amplifier (FM-EDFA) gain equalization
On-line přístup:	https://www.mdpi.com/2304-6732/9/5/305
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