利用涡旋光轨道角动量的8进制数据传输
Octal data transmission utilizing orbital angular momentum of the vortex light
黎芳 1李润豪 1杨傲 1申辰1
作者信息
- 1. 北京建筑大学电气与信息工程学院,北京 102612
- 折叠
摘要
提出了一种基于涡旋光轨道角动量特性与8进制数据编码相结合的数据传输方法.原理为将传输数据进行8进制编码,并将每个比特映射为不同大小的拓扑荷值,使用轨道角动量键控法得到相应拓扑荷值的涡旋光,并使用复二重振幅光栅进行拓扑荷检测从而得到相应的编码数据并最后进行反向解码.通过仿真验证了,相比于普通的二进制光传输涡旋光8进制数据传输具有更大的信道容量.最后通过具体实验得到实际的涡旋光九宫格图像并进行分析,验证了涡旋光8进制数据加密传输的可行性.
Abstract
In this paper,a data transmission method based on the combination of the characteristics of the angular mo-mentum of the vortex optical orbit and octal data encoding is proposed.The principle is to encode the transmitted data in octal and map each bit into different sizes of topological charges,use orbital angular momentum keying method to obtain the corresponding topological charge of the vortex light,and utilize the double amplitude grating to detect the to-pological charge so as to obtain the corresponding encoded data and finally carry out the reverse decoding.The simula-tion results show that compared with conventional binary optical transmission,vortex optical octet data transmission has a larger channel capacity.Finally,the actual scroll light grid image is obtained and analyzed through the concrete ex-periment,and the feasibility of encrypted transmission of scroll light 8-bit data is verified.
关键词
光通信/涡旋光/8进制数据传输/轨道角动量Key words
optical communication/vortex light/octal data transmission/orbital angular momentum引用本文复制引用
基金项目
国家自然科学基金项目(41801229)
北京市属高校基本科研业务费项目(X20153)
北京建筑大学建大英才培养计划项目(JDYC20200328)
出版年
2024
NETL
NSTL
万方数据