Structured light beams created through a multimode fiber via virtual Fourier filtering based on digital optical phase conjugation

Chaojie Ma, Jianglei Di, Jiazhen Dou, Peng Li, Fajun Xiao, Kaihui Liu, Xuedong Bai, Jianlin Zhao

科研成果: 期刊稿件文章同行评审

8 引用 (Scopus)

摘要

Digital optical phase conjugation (DOPC) is a newly developed technique in wavefront shaping to control light propagation through complex media. Currently, DOPC has been demonstrated for the reconstruction of two- and three-dimensional targets and enabled important applications in many areas. Nevertheless, the reconstruction results are only phase conjugated to the original input targets. Herein, we demonstrate that DOPC could be further developed for creating structured light beams through a multimode fiber (MMF). By applying annular filtering in the virtual Fourier domain of the acquired speckle field, we realize the creation of the quasi-Bessel and donut beams through the MMF. In principle, arbitrary amplitude and/or phase circular symmetry filtering could be performed in the Fourier domain, thus generating the corresponding point spread functions. We expect that the reported technique can be useful for super-resolution endoscopic imaging and optical manipulation through MMFs.

源语言英语
页(从-至)701-705
页数5
期刊Applied Optics
59
3
DOI
出版状态已出版 - 20 1月 2020

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