Paper
15 December 2022 A coupled multi-core fiber with selective erbium ion doping for gain equalization
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Proceedings Volume 12478, Thirteenth International Conference on Information Optics and Photonics (CIOP 2022); 124783S (2022) https://doi.org/10.1117/12.2654861
Event: Thirteenth International Conference on Information Optics and Photonics (CIOP 2022), 2022, Xi'an, China
Abstract
A coupled multi-core fiber (CMCF) with selective erbium ions doping is proposed. Due to the small gap between the cores, four signal supermodes are supported. Based on the overlap integral between the signal and pump modes, the concentration proportion of the central core to outer cores is modified. At a concentration ratio of 0.93, the signal gains are higher than 20 dB and at the same time, a small differential modal gain (DMG) of 0.17 dB is obtained.
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Jianshuai Wang, Li Pei, Wenxuan Xu, Jingjing Zheng, Jing Li, and Tigang Ning "A coupled multi-core fiber with selective erbium ion doping for gain equalization", Proc. SPIE 12478, Thirteenth International Conference on Information Optics and Photonics (CIOP 2022), 124783S (15 December 2022); https://doi.org/10.1117/12.2654861
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KEYWORDS
Doping

Ions

Erbium

Fiber couplers

Optical amplifiers

Refractive index

Cladding

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