基于衍射光栅的涡旋光束轨道角动量检测

Yankun Wang, L. Bai, Jinyu Xie, Yazhong Guo
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引用次数: 0

摘要

近年来,对于涡旋光束和空间结构光场的发展或应用,涡旋光束的轨道角动量(OAM)检测已成为一个重要的课题。本文基于空间光调制器(SLM)的全息衍射光栅方法,通过设计一种强度分布和衍射角度可调的衍射光栅,检测单模涡旋光束的OAM。我们首先从自己设计的一维全息衍射光栅开始,验证了我们的想法,然后设计了一个二维全息衍射光栅,并成功地检测了单模涡旋光束的OAM。理论和实验非常吻合。该方法可用于基于slm的全息衍射光栅的设计,并对基于涡束的OAM检测和数据传输系统具有参考价值。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Orbital angular momentum detection of vortex beam based on diffraction grating
In recent years, for the development or application of vortex beams and spatial structured optical fields, the detection of orbital angular momentum (OAM) of vortex beams has become an important topic. In this paper, based on the holographic diffraction grating method of the spatial light modulator (SLM), through a designed diffraction grating whose intensity distribution and diffraction angle are adjustable, the OAM of the single-mode vortex beam is detected. We first started with a self-designed 1D holographic diffraction grating, verified our ideas, and then designed a 2D holographic diffraction grating and successfully detected the OAM of the single-mode vortex beam. The theory and experiment are in great agreement. Our method is useful for the design of SLM-based holographic diffraction gratings and has reference value for OAM detection and data transmission systems based on vortex beams.
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