Citation

Chen, Zirui and Wen, Jianxiang and Luo, Yanhua and Pang, Fufei and Abdul Rashid, Hairul Azhar and Peng, Gang Ding and Wang, Tingyun (2026) Ultra-Low Noise Figure of Erbium-Doped Fiber Amplifier Enabled by Nested Anti-resonant Hollow-Core Fiber. Journal of Lightwave Technology. pp. 1-11. ISSN 0733-8724

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Abstract

Driven by the demand for high-capacity communication systems, a novel erbium-doped fiber amplifier with an ultra-low noise figure, based on a nested anti-resonant hollowcore fiber (NC-ARHCF) is investigated. A theoretical model for light-matter interaction within the doped regions of the cladding tubes is established, employing the normalized power density distribution (NPDD) instead of the conventional overlap factor to calculate fiber gain. When the wall thickness and refractive index of the doped cladding tube are set to 0.9765 m and 1.5, respectively, and the active particle doped in the outer-ring doping regions, and further a higher-order pump light mode, the fiber achieves a maximum gain exceeding 37 dB. The gain bandwidth exceeds 50 nm with a gain above 27 dB and improved flatness. Owing to the absence of light-matter interactions in the hollow-core transmission region, the noise figure is reduced to as low as 2.95 dB, while the minimum confinement loss is also up to 0.15 dB/km. These findings provide a new route for next-generation ultra-low noise, high-gain fiber amplifiers and offer valuable insights for future ultra-low latency and ultra-high capacity communication systems.

Item Type:	Article
Uncontrolled Keywords:	Silica fiber
Subjects:	T Technology > TP Chemical technology > TP155-156 Chemical engineering
Depositing User:	Ms Rosnani Abd Wahab
Date Deposited:	31 Jul 2026 05:21
Last Modified:	31 Jul 2026 05:21
URII:	http://shdl.mmu.edu.my/id/eprint/16396

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