相关实验视频
Updated: Jan 11, 2026

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20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
Published on: July 12, 2017
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概括
一个全新的全纤维十模组放大器增强了17个模式信号,具有高增益和平衡模式增益. 这种添加光纤放大器 (EDFA) 对高容量WDM-MDM系统显示出了前景.
科学领域:
- 光学通信是指光学通信.
- 光纤光学是指光纤的使用.
- 放大技术的放大技术
背景情况:
- 高容量的光通信系统需要对多个空间模式进行放大.
- 现有的放大器在各种模式,特别是更高阶模式中,都难以获得平衡的增益.
- 少数模式光纤放大器对于推进波长分割复杂化-模式分割复杂化 (WDM-MDM) 是至关重要的.
研究的目的:
- 构建和描述一个全纤维十模组放大器.
- 为了实现17个空间模式的高增益和模式增益平衡.
- 为了评估WDM-MDM系统的放大性能.
主要方法:
- 制造具有三环形核心的几模合纤维 (FM-EDF).
- 开发低损耗的被动装置和使用空间光调制器 (SLM) 的模式选择性激发平台.
- 在不同的FM-EDF长度,输入信号功率和功率下调查增强特征.
主要成果:
- 在1550nm时获得了27.46dB的平均增强,基本模式 (700mW功率).
- 证明了最低差分模式增益 (DMG) 低至3.13dB.
- 在C频段获得了26.36dB的平均增益,最大DMG<5dB,同时放大8个波长通道.
结论:
- 构建的10模式的辅助纤维放大器 (EDFA) 显示出出色的放大性能.
- 放大器提供高增益和良好的模式增益平衡,适用于复杂模式信号,包括LP03.
- 这种EDFA对未来的高容量WDM-MDM光学传输系统具有重大实际价值.
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