概括
研究人员开发了用于光纤通信的U频段离散拉曼放大器. 这些放大器实现了高增益和低噪声,在C,L和U频段实现了创纪录的123.5Tb/s数据速率.
科学领域:
- 光学工程是指光学工程.
- 电信 电信服务 电信服务 电信服务
- 光子学是指光子学的使用方法.
背景情况:
- 对更高数据传输速率的需求需要光学放大器的进步.
- U频段 (1625-1650纳米) 为增加光纤通信能力提供了尚未开发的潜力.
- 离散拉曼放大器对于延长传输距离和提高信号质量至关重要.
研究的目的:
- 为了实验证明U频段离散拉曼放大器使用向后不连贯的.
- 为了研究不同拉曼增强纤维 (HNLF,HNLDSF,IDF) 在U频段中的性能.
- 评估放大器在宽带连贯传输系统中的整合,并评估实现的数据速率.
主要方法:
- 利用反向不连贯的送,在U频段实现离散的拉曼放大.
- 实验测试了三种类型的拉曼增强纤维:1公里HNLF,0.51公里HNLDSF和7.6/8公里IDF.
- 将开发的拉曼放大器集成到一个C+L+U频段连贯传输系统中,使用516个DP-64/256QAM信号通道在50公里SSMF.
主要成果:
- 在使用1公里HNLF时,获得了高达22.3dB的净增益和4.2-5.8dB的噪声值 (NF).
- 与HNLDSF和IDF相比,1公里HNLF显示了最高的收益和最低的NF.
- 集成系统在C+L+U频段实现了123.5 Tb/s的最大解码数据速率,U频段达到25.6 Tb/s.
结论:
- 使用HNLF的U频段离散拉曼放大器为高收益低噪音应用提供了卓越的性能.
- 开发的放大器有效地支持宽带连贯传输系统,大大提高了整体数据容量.
- 这项研究为利用U频段来满足未来数据流量需求铺平了道路.
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