Reducing orbital angular momentum crosstalk of the Bessel–Gaussian beam for underwater optical communications
Reducing orbital angular momentum crosstalk of the Bessel–Gaussian beam for underwater optical communications
复制标题
减少水下光通信贝塞尔-高斯光束的轨道角动量串扰
DOI：
10.1088/2040-8986/ab8ea1
复制
发表时间：
2020
影响因子：
2.1
通讯作者：
Yangsheng Yuan
中科院分区：
文献类型：
--
作者：
Hui Zhang;Wenqiang Ding;Peng Fu;Xianlong Liu;Yaru Gao;Yuanmei Gao;Yangjian Cai;Yangsheng Yuan
推导了用于水下光通信的高阶贝塞尔-高斯光束的信号和串扰轨道角动量（OAM）态概率的解析表达式。数值计算结果表明，信号和串扰OAM状态的概率受到传播距离和海洋湍流参数的影响。接收器孔径可以用来降低串扰OAM状态的概率，并且检测到的信号OAM状态的概率几乎保持不变。我们的研究结果可能会提高光通信系统的质量。
We derive analytical expressions of the probabilities for the signal and the crosstalk orbital angular momentum (OAM) states of a high order Bessel–Gaussian beam used in underwater optical communications. Our numerical results show that the probabilities of the signal and crosstalk OAM states are affected by the propagation distance and the parameters of the oceanic turbulence. The receiver aperture can be used to reduce the probabilities of the crosstalk OAM states and the probability of the detected signal OAM states keeps almost unchanged. Our results may improve the quality of optical communications systems.