无色CMOS集成的四位轨道角动量模式探测器在三个波长
Baoli Li1,2, Xiaonan Hu1,2, Zhiwen Mu1,2
1School of Artificial Intelligence Science and Technology, University of Shanghai for Science and Technology, Shanghai 200093, China.
Nano letters
|July 1, 2024
概括
我们开发了一种超紧的无色探测器,用于同时测量轨道角动量 (OAM) 和波长. 这种集成设备通过在不同波长上准确区分OAM模式,使高容量光学复杂化成为可能.
科学领域:
- 光学和光子学 在光学和光子学.
- 综合光子学 综合光子学
- 信息处理 信息处理
背景情况:
- 同时检测轨道角动量 (OAM) 和波长对于先进的光学复杂化至关重要.
- 镜头功能的分散限制了在单一平面中的不同波长的同时模式转换.
研究的目的:
- 提出和演示一个超紧的,无色的OAM模式探测器,集成CMOS技术.
- 为了克服波长依赖散射在OAM检测中的局限性.
主要方法:
- 开发一个空间复杂化方案与交叉相分布.
- 制造具有微尺寸和短焦距的纳米打印无色OAM探测器.
- 将探测器集成到CMOS芯片上.
主要成果:
- 在三个离散波长 (633,532和488纳米) 的四位事件光束的成功区分.
- 在OAM模式检测中高精度,平均标准化的欧几里德距离为~0.75.5.
- 一个小型化平台的演示,用于高容量的信息处理.
结论:
- 拟议的无色OAM探测器为光学复杂化提供了一个紧而高效的解决方案.
- 在高容量信息处理中,CMOS集成可实现实际应用.
- 该技术为下一代光通信系统铺平了道路.
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