重组实Björck序列辅助频域MIMO方案用于自我同质的MDM系统中的多重减值补偿
Optics express
|August 13, 2025
概括
本研究引入了一种使用光学互连的重组实Björck序列的新方法. 它有效地弥补了自我同源模式分割复杂化系统中的各种信号损伤.
科学领域:
- 光学通信是指光学通信的应用.
- 数字信号处理是数字信号处理.
背景情况:
- 自主同源模式分割复杂化 (SH-MDM) 提供了高容量,但面临模式合 (MC),差分模式组延迟 (DMGD) 和接收器硬件损伤 (RHI) 的挑战.
- 现有的方法很难在SH-MDM系统中共同平衡这些复杂的损伤.
研究的目的:
- 提出和验证一个新的重组实Björck序列辅助频域多输入多输出 (RRB-FD-MIMO) 方案.
- 在SH-MDM系统中实现MC,DMGD和RHI的联合均等.
主要方法:
- 使用增强的RRB序列来高精度估计模式损伤和RHI.
- 实施频域平衡,同时补偿多个损害.
- 实验验证使用28 GBaud SH-MDM-16QAM信号在几模光纤上的实验验证.
主要成果:
- 该RRB-FD-MIMO方案有效地弥补了广泛的DMGD (-705到603 ps),智商偏差 (±300 ps),智商振幅不平衡 (-19到18 dB) 和智商相位不平衡 (-70°到73°).
- 在补偿期间,维持了1dB内的Q因子罚款.
- 与参考复合物-扎多夫-楚序列辅助FD-MIMO (CZC-FD-MIMO) 方案相比,拟议的方案显示出更高的稳定性,该方案对智商障碍表现出显著的敏感性.
结论:
- RRB-FD-MIMO方案为SH-MDM中的通道和接收器损伤的联合均等提供了一个强大的和有效的解决方案.
- 这种方法为未来的高速,低成本光学互连提供了一个有希望的数字信号处理 (DSP) 解决方案.
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