Advances in communications using optical vortices
Advances in communications using optical vortices
复制标题
利用光学涡旋进行通信的进展
DOI：
10.1364/prj.4.000b14
复制
发表时间：
2016-10-01
影响因子：
7.6
通讯作者：
Wang, Jian
中科院分区：
文献类型：
--
作者：
Wang, Jian
具有孤立点奇异性的光学涡旋与光波的空间结构相关联。具有偏振奇点的偏振涡旋(矢量光束)具有空间变化的偏振。具有位相奇异性或螺旋位错的位错相旋涡具有螺旋相前锋。近年来，光学涡旋在光学捕获、光钳、激光加工、显微镜、量子信息处理和光通信等领域受到越来越多的关注。本文综述了利用光涡进行光通信的最新进展。首先，介绍了通信中偏振/位相涡旋调制和复接的基本概念以及偏振/位相涡旋的产生和解复用的关键技术。其次，介绍了利用光涡旋调制和光涡旋复用的自由空间光纤通信。最后，讨论了利用光涡进行光通信的关键挑战和前景。预计利用光波的空间物理维度的光涡在光通信和互连中可能会有更有趣的应用。(C)2016中国激光出版社
An optical vortex having an isolated point singularity is associated with the spatial structure of light waves. A polarization vortex (vector beam) with a polarization singularity has spatially variant polarizations. A phase vortex with phase singularity or screw dislocation has a spiral phase front. The optical vortex has recently gained increasing interest in optical trapping, optical tweezers, laser machining, microscopy, quantum information processing, and optical communications. In this paper, we review recent advances in optical communications using optical vortices. First, basic concepts of polarization/phase vortex modulation and multiplexing in communications and key techniques of polarization/phase vortex generation and (de)multiplexing are introduced. Second, free-space and fiber optical communications using optical vortex modulation and optical vortex multiplexing are presented. Finally, key challenges and perspectives of optical communications using optical vortices are discussed. It is expected that optical vortices exploiting the space physical dimension of light waves might find more interesting applications in optical communications and interconnects. (C) 2016 Chinese Laser Press