Modal Gain Equalization of Few-mode Erbium-doped Fiber Amplifiers Enabled by Mirrored Mode Exchanges

Tao Xu; Zhiqun Yang; Yaping Liu; Qiang Guo; Rui Zhou; Xinhua Xiao; Wenhao Li; Wei Li; Cheng Du; Zhanhua Huang; Lin Zhang; Lin Zhang

doi:10.1364/OFC.2023.M1B.3

Optical Fiber Communication Conference (OFC) 2023
Technical Digest Series (Optica Publishing Group, 2023),
paper M1B.3
•https://doi.org/10.1364/OFC.2023.M1B.3

Modal Gain Equalization of Few-mode Erbium-doped Fiber Amplifiers Enabled by Mirrored Mode Exchanges

Tao Xu, Zhiqun Yang, Yaping Liu, Qiang Guo, Rui Zhou, Xinhua Xiao, Wenhao Li, Wei Li, Cheng Du, Zhanhua Huang, and Lin Zhang

Optical Fiber Communication Conference 2023

San Diego California United States
5–9 March 2023
ISBN: 978-1-957171-18-0

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SDM Devices and Amplifiers (M1B)

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T. Xu, Z. Yang, Y. Liu, Q. Guo, R. Zhou, X. Xiao, W. Li, W. Li, C. Du, Z. Huang, and L. Zhang, "Modal Gain Equalization of Few-mode Erbium-doped Fiber Amplifiers Enabled by Mirrored Mode Exchanges," in Optical Fiber Communication Conference (OFC) 2023, Technical Digest Series (Optica Publishing Group, 2023), paper M1B.3.

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Abstract

We propose a six-mode erbium-doped fiber amplifier with significantly reduced differential modal gain (DMG) by mirrored exchanging of the spatial modes for the first time. A DMG of <1.8 dB across the whole C-band is experimentally achieved.

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