基于极简单光纤设计的增益均衡l波段少模掺铒光纤放大器

Q. Qiu, Z. Gu, Le He, Yingbo Chu, N. Dai, Jinyan Li
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引用次数: 0

摘要

我们通过数值和实验证明了一种低不同模态增益(DMG)的4-LP模式l波段少模光纤放大器,它采用了一种非常简单的光纤结构。通过数值计算,研究了FM-EDF芯半径优化对DMG性能和增益的影响。采用改性化学气相沉积(MCVD)法制备了一种金属薄膜- edf,将NA提高到0.25,芯半径选择为8.1 μm。在1480 nm处抽芯LP11模式下,在1570 nm处4种模式的DMG均为~0.7 dB,增益<17 dB。结果表明,本文提出的掺铒光纤放大器在大容量长距离模分复用(MDM)传输系统中具有很大的应用潜力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Gain-equalized L-band few-mode erbium-doped fiber amplifier based on extremely simple fiber design
We numerically and experimentally demonstrated a low different modal gain (DMG) 4-LP modes L-band few-mode fiber amplifier by using an extremely simple fiber structure. The optimization effect of FM-EDF core radius on DMG performance and gain was numerically studied. An FM-EDF was fabricated by modified chemical vapor deposition (MCVD), for which the NA was improved to 0.25 and the core radius was properly selected to 8.1 μm. In the case of core pumping of the LP11 mode at 1480 nm, an e DMG of ~0.7 dB and the gain of <17 dB was obtained for all four modes at 1570 nm. The results suggested that our proposed erbium-doped fiber amplifier has great potential for large-capacity long-haul mode division multiplexing (MDM) transmission system.
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