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
060.2330 Fiber optics communications 060.4230 Multiplexing 060.2410 Fibers, erbium 140.4480 Optical amplifiers
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.