High-Flat-Gain and $\mathrm{C}+\mathrm{L}$ Band Distributed Raman Amplifier Applied in 3 Mode-Group-Division Multiplexing and WDM Long-Haul MIMO-Free Transmission over 104-km Ring-Core Fiber

Yuchen Zhang,Xi Zhang,Guofeng Yan,Min Yang, Mutian Xu,Jun Liu,Jian Wang

2023 Asia Communications and Photonics Conference/2023 International Photonics and Optoelectronics Meetings (ACP/POEM)（2023）

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摘要

We demonstrate 3 orbital angular momentum mode-group-division multiplexing assisted with wavelength-division multiplexing for MIMO-free transmission over 104-km ring-core fiber. The distributed Raman amplifier in system shows high flat gain $(> \mathbf{10dB})$ over the $\mathbf{C}+\mathbf{L}$ band.

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关键词

Raman gain,orbital angular momentum,mode selective coupler,ring core fiber,distributed Raman amplifier

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