在随机媒体中扭曲光的普遍交叉声
David Bachmann1, Asher Klug2, Mathieu Isoard1
1Physikalisches Institut, Albert-Ludwigs-Universität Freiburg, Hermann-Herder-Straße 3, D-79104 Freiburg, Germany.
Physical review letters
|February 23, 2024
概括
结构化的光通信在大气流中面临交叉通话. 一个通用函数根据介质和光束属性预测模式合,改善信号完整性.
科学领域:
- 光学和光子学 在光学和光子学.
- 光学通讯是指光学通讯.
- 量子信息是一种量子信息.
背景情况:
- 结构化光线为光通信提供了增强的带宽和安全性.
- 通过大气流的传播会导致交联式交声,降低信号质量.
- 光子轨道角动量 (OAM) 模式容易受到这种交叉通话的影响.
研究的目的:
- 在随机介质中研究光子轨道角动量模式合的规则.
- 确定一个通用参数,预测结构化光通信中的交叉通话.
- 用实验证据验证数值发现.
主要方法:
- 通过随机介质进行光传播的数值模拟.
- 使用受控大气流模型进行实验验证.
- 作为对应长度的函数,对交联交叉语音的分析.
主要成果:
- 光子OAM模式合是由一个通用函数描述的.
- 这个函数仅取决于相关长度的比率 (介质与光束).
- 该模型即使在强度的显著波动下也持有.
结论:
- 在大气流中,一个单一的参数控制OAM模式合.
- 这一发现为结构光通信系统提供了一个预测工具.
- 基于这种普遍关系,可以制定交叉通话的缓解策略.
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