Identifying the Symmetry of an Object Based on Orbital Angular Momentum through a Few-Mode Fiber

Zhou Xiang Wang, Yu Chen Xie, Han Zhou, Shuang Yin Huang, Min Wang, Rui Liu, Wen Rong Qi, Qian Qian Tian, Ling Jun Kong, Chenghou Tu, Yongnan Li, Hui Tian Wang*

*此作品的通讯作者

科研成果: 期刊稿件文章同行评审

3 引用 (Scopus)

摘要

In recent years, orbital angular momentum (OAM), as a new usable degree of freedom of photons, has been widely applied in both classical optics and quantum optics. For example, digital spiral imaging uses the OAM spectrum of the output beam from the object to restore the symmetry information of the object. However, the related experiments have been carried out in free space so far. Due to the poor anti-noise performance, limited transmission distance and other reasons, the practicability is seriously restricted. Here, we have carried out a digital spiral imaging experiment through a few-mode fiber, to achieve the identification of the symmetry of object by measuring the OAM spectrum of the output beam. In experiment, we have demonstrated the identification of the symmetry of amplitude-only and phase-only objects with the two-, three-and four-fold rotational symmetries. We also give the understanding of the physics. We believe that our work has greatly improved the practical application of digital spiral imaging in remote sensing.

源语言英语
文章编号124207
期刊Chinese Physics Letters
36
12
DOI
出版状态已出版 - 2019
已对外发布

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Wang, Z. X., Xie, Y. C., Zhou, H., Huang, S. Y., Wang, M., Liu, R., Qi, W. R., Tian, Q. Q., Kong, L. J., Tu, C., Li, Y., & Wang, H. T. (2019). Identifying the Symmetry of an Object Based on Orbital Angular Momentum through a Few-Mode Fiber Chinese Physics Letters, 36(12), 文章 124207. https://doi.org/10.1088/0256-307X/36/12/124207