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Conferences > CLEO_SI > 2019 > SM1N > SM1N.5

Experimental Demonstration of Enhanced Accuracy of Beam Radial Displacement and Azimuthal Rotation Measurements using Enhanced Gradient of a Beam Composed of Multiple Orbital-Angular-Momentum Modes

Jing Du, Zhe Zhao, Guodong Xie, Runzhou Zhang, Long Li, Haoqian Song, Kai Pang, Cong Liu, Hao Song, Shlomo Zach, Nadav Cohen, Moshe Tur, and Alan E. Willner

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Abstract

We experimentally demonstrate beam radial displacement and azimuthal rotation angle measurements using the intensity gradient of a beam composed of multiple OAM modes. Compared with a Gaussian beam or a beam carrying two opposite OAM modes, using a beam composed of multiple OAM modes can improve the measurement accuracy with the same beam power.

© 2019 The Author(s)

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