Superposition and detection of two helical beams for optical orbital angular momentum communication

Yi Dong Liu, Chunqing Gao*, Mingwei Gao, Xiaoqing Qi, Horst Weber

*此作品的通讯作者

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34 引用 (Scopus)

摘要

A loop-like system with a Dove prism is used to generate a collinear superposition of two helical beams with different azimuthal quantum numbers in this manuscript. After the generation of the helical beams distributed on the circle centered at the optical axis by using a binary amplitude grating, the diffractive field is separated into two polarized ones with the same distribution. Rotated by the Dove prism in the loop-like system in counter directions and combined together, the two fields will generate the collinear superposition of two helical beams in certain direction. The experiment shows consistency with the theoretical analysis. This method has potential applications in optical communication by using orbital angular momentum of laser beams (optical vortices). Crown

源语言英语
页(从-至)3636-3639
页数4
期刊Optics Communications
281
14
DOI
出版状态已出版 - 15 7月 2008

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