概括
我们开发了一种新的编码调制技术,以克服长距离空心纤维传输中的极化模式分散 (PMD). 这种方法可以通过双嵌套的反共振无节点纤维 (DNANF) 实现高效的长距离光通信.
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.
- 信号处理 信号处理
背景情况:
- 长途空心光纤传输对于未来的光学网络至关重要.
- 在双嵌套的反共振无节点纤维 (DNANFs) 中,极化模式分散 (PMD) 对高速数据传输构成重大挑战.
- 高PMD需要复杂的数字信号处理 (DSP) 进行等级,增加系统成本和复杂性.
研究的目的:
- 为了证明100公里的DNANF在长途空心变速箱的潜力.
- 引入和验证一种新的编码调制方案,以减轻PMD和频率选择性色.
- 为了减少与PMD补偿相关的数字信号处理 (DSP) 复杂性.
主要方法:
- 制造100公里的双嵌套反共振无节点纤维 (DNANFs).
- 实施一种编码调制技术,利用多个子载体的频率解析等分.
- 在数字子载波调制 (DSCM) 上应用时空编码 (STC) 进行等级和性能平衡.
主要成果:
- 在100公里的DNANF跨度中,测量的PMD系数为0.7ps/km.
- 使用拟议的STC-DSCM,演示了40Gbaud光学传输.
- 实现了1200公里的光学DNANF传输,Q因子增益超过0.62dB.
结论:
- 对于远程光通信来说,DNANF是可行的.
- 拟议的STC-DSCM有效地管理PMD和频率选择性色.
- 这种方法提供了一个有效的途径,以提高长距离空心纤维系统的性能.
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