SDM通过多环核心光纤传输轨道角动量模式通道
Jingxing Zhang1, Zhongzheng Lin1, Jie Liu1
1State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology, Sun Yat-sen University, Guangzhou 510006, China.
Nanophotonics (Berlin, Germany)
|December 5, 2024
概括
这项研究证明了使用多环核心轨道角动量 (OAM) 纤维的第一个空间分割多重光学传输. 它通过传输56个OAM模式通道,在最小的信号处理中实现了超过60公里的31.4 Tbit/s容量.
科学领域:
- 光学通信是指光学通信.
- 光子学是指光子学的使用方法.
- 光纤光学是指光纤的使用.
背景情况:
- 轨道角动量 (OAM) 为增加光纤容量提供了新的自由度.
- 空间分区复杂化 (SDM) 对于下一代高容量光学网络至关重要.
研究的目的:
- 为了证明第一个空间划分,通过多环核心OAM光纤进行多重复光学传输.
- 调查同时在多个核心中传输多个OAM模式的可行性.
- 在光通信系统中实现高数据速率和光谱效率.
主要方法:
- 使用一个七核多环核OAM光纤支持OAM模式从拓电荷.
- 采用专门设计的相罩,在每个核心中实现高效的OAM模式转换.
- 实现了模块化4x4多输入多输出 (MIMO) 信号处理,以管理模式交叉通话.
- 传输了56个OAM模式通道,每个通道携带10个WDM波长,具有28GBaud QPSK调制.
主要成果:
- 在60公里的光纤跨度上实现了56个OAM模式通道的同时传输.
- 报告的总容量为31.4 Tbit/s (净25.1 Tb/s). 报告的总容量为31.4 Tbit/s (净25.1 Tb/s).
- 获得了62.7位/秒/Hz (净50.2位/秒/Hz) 的光谱效率.
- 证明了有效的交叉声平衡与最小的MIMO处理.
结论:
- 多环核心OAM光纤使高容量的SDM光学传输成为可能.
- 软弱的核心间和模式间组合促进了OAM通道的密集多重化.
- 拟议的系统为未来超高容量光学网络提供了一个有希望的方法.
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