Longitudinal cascaded few mode erbium-doped fibers using PSO method with ultra-low differential modal gain

Kaihua Hu; Li Pei; Jianshuai Wang; Wenxuan Xu; Jingjing Zheng; Jing Li; Tigang Ning

doi:10.1117/12.2654930

15 December 2022 Longitudinal cascaded few mode erbium-doped fibers using PSO method with ultra-low differential modal gain

Kaihua Hu, Li Pei, Jianshuai Wang, Wenxuan Xu, Jingjing Zheng, Jing Li, Tigang Ning

Author Affiliations +

Proceedings Volume 12478, Thirteenth International Conference on Information Optics and Photonics (CIOP 2022); 1247844 (2022) https://doi.org/10.1117/12.2654930
Event: Thirteenth International Conference on Information Optics and Photonics (CIOP 2022), 2022, Xi'an, China

Abstract

In this paper, we propose a longitudinal cascaded few-mode erbium-doped fiber amplifier (FM-EDFA) by particle swarm optimization (PSO). Triple-cascaded few-mode erbium-doped fibers (FM-EDFs) are applied longitudinally, which have the same refractive index distributions and different erbium-ion doping profiles. Each fiber is uniformly doped in different regions. The input power of the pump and signal are settled. The length and order of three pieces of FM-EDFs are optimized by PSO, which helps to minimize the differential modal gain (DMG) and maximize the modal gain at the output port. An ultra-low DMG of 0.007 dB and minimum modal gain (MMG) of about 24.890 dB are obtained at the wavelength of 1550 nm.

Citation Download Citation

Kaihua Hu, Li Pei, Jianshuai Wang, Wenxuan Xu, Jingjing Zheng, Jing Li, and Tigang Ning "Longitudinal cascaded few mode erbium-doped fibers using PSO method with ultra-low differential modal gain", Proc. SPIE 12478, Thirteenth International Conference on Information Optics and Photonics (CIOP 2022), 1247844 (15 December 2022); https://doi.org/10.1117/12.2654930

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