概括
我们开发了一种混合光纤配置,用于超高通道计数轨道角动量 (OAM) 模式转换. 这一突破为先进的OAM应用程序提供了更多道.
科学领域:
- 光学和光子学 在光学和光子学.
- 电信工程 电信工程 电信工程
- 材料科学 材料科学 材料科学
背景情况:
- 轨道角动量 (OAM) 复合提供了一种有前途的方法来增加光纤通信能力.
- 现有的基于光纤的OAM模式转换器在通道数量和带宽方面面临限制.
研究的目的:
- 提出和演示一种新的混合少模式光纤配置 (HFMFC),用于超高通道计数OAM模式转换.
- 为了实现OAM模式转换器的灵活和密集的通道间距.
主要方法:
- 设计一个混合的几模光纤配置 (HFMFC),包括定期扭曲的分级索引和步进索引的几模光纤段.
- 优化HFMFC的结构参数,以实现可定制的通道间距.
- 在C + L电信频段中演示多通道OAM模式转换.
主要成果:
- 成功演示了10,32,117和233通道的OAM模式转换.
- 实现可定制的通道间距降至50 GHz (约0.4 nm).
- 迄今为止,以光纤为基础的多通道OAM模式转换器的频道数量最高.
结论:
- 拟议的HFMFC可实现OAM模式转换的前所未有的频道计数.
- 这项技术在推进OAM光纤通信,全息,信息处理和计量学方面具有重大潜力.
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