概括
我们开发了一种CO2激光技术,用于创建多通道光纤网格,用于生成轨道角动量 (OAM) 模式. 这一创新使灵活的光通信和传感应用成为可能.
科学领域:
- 光子学和光学工程的工程.
- 光纤技术技术 光纤技术技术
- 激光制造技术 激光制造技术
背景情况:
- 轨道角动量 (OAM) 模式为先进的光学应用提供了独特的特性.
- 有效地生成多道和多订单OAM模式仍然是一个挑战.
- 少数模式光纤 (FMF) 对于支持OAM模式至关重要.
研究的目的:
- 提出和演示一个集成的多通道,多顺序轨道角动量 (OAM) 模式发电机.
- 利用二氧化碳激光制造在FMF上创建长期纤维格子 (LPFGs).
- 为了实现对OAM生成的灵活控制,用于各种应用.
主要方法:
- 使用二氧化碳激光器在少数模式纤维 (FMF) 上制造集成长期纤维网格 (LPFG).
- 通过控制的纤维旋转 (例如43度) 在FMF的多个表面上刻入LPFG.
- 调整旋转角度以控制集成LPFG的数量和格子周期.
主要成果:
- 在FMF上成功集成了多达九个LPFG,实现了九个频道的第一阶段OAM模式转换.
- 通过控制集成LPFG的数量,证明了通道间距的灵活设计.
- 通过选择格子期,实现了多通道二级和三级OAM模式的同时生成.
结论:
- 拟议的基于CO2激光的LPFG制造方法为多通道OAM模式生成提供了灵活的方法.
- 集成的LPFG能够精确控制OAM订单和频道数量.
- 这项技术对光通信复杂化和OAM传感系统具有重大潜力.
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