Abstract:The rotational Doppler effect (RDE) occurs when a vortex beam carrying orbital angular momentum (OAM) is normally incident on the center of a rotating target, which is widely applied for the angular velocity measurement of the rotating target and OAM detection. The combined vortex beam based on coherent beam combining technology has many unique advantages, such as high power and excellent quality. In this paper, the combined vortex beam is used as the detection source to measure the rotating target at a distan… Show more
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