物理
拓扑量子数
角动量
光学
光通信
梁(结构)
光圈(计算机存储器)
波长
贝塞尔函数
高斯光束
自由空间光通信
信号(编程语言)
计算物理学
量子力学
计算机科学
声学
程序设计语言
作者
Zihan Cong,Hui Zhang,Yuanmei Gao,Yangjian Cai,Yangsheng Yuan
出处
期刊:Photonics
[MDPI AG]
日期:2024-01-30
卷期号:11 (2): 131-131
标识
DOI:10.3390/photonics11020131
摘要
We derived the formula for the detection probability, signal-to-noise ratio (SNR), and average bit error rate (BER) for the signal orbital angular momentum (OAM) state carried via non-uniformly correlated high-order Bessel–Gaussian beam propagation in a turbulent atmosphere. The wavelength, receiver aperture, beam width, strength of the turbulent atmosphere, and topological charge effect on detection probability, SNR, and average BER of the signal OAM state were demonstrated numerically. The results show that the signal OAM state with low topological charge, a small receiver aperture, a narrow beam width, and a long wavelength can improve the performance of optical communications systems under conditions of weak atmospheric turbulence. Our results will be useful in long-distance free space optical (FSO) communications.
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