Chinese Optics Letters, 2019, 17 (10): 100604, Published Online: Sep. 12, 2019   

All-fiber few-mode erbium-doped fiber amplifier supporting six spatial modes Download: 990次

Author Affiliations
1 Key Laboratory of Opto-electronic Information Technical Science of Ministry of Education, College of Precision Instruments and Opto-electronics Engineering, Tianjin University, Tianjin 300072, China
2 Fiberhome & Fujikura Optics Co., Ltd., Wuhan 430074, China
Abstract
Using the few-mode erbium-doped fiber (FM-EDF) with a simple two-layer erbium-doped structure, we demonstrate an all-fiber FM-EDF amplifier. The gain equalization among the six spatial modes supported by the FM-EDF is achieved when only the pump in the fundamental mode (LP01) is applied. When the signals in six spatial modes are simultaneously amplified, the average modal gain is about 15 dB, and differential modal gain is about 2.5 dB for the signal at 1550 nm.

Zhenzhen Zhang, Cheng Guo, Liang Cui, Yichi Zhang, Cheng Du, Xiaoying Li. All-fiber few-mode erbium-doped fiber amplifier supporting six spatial modes[J]. Chinese Optics Letters, 2019, 17(10): 100604.

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