Effectively Identifying the Topological Charge and Polarization Order of Arbitrary Singular Light Beams Based on Orthogonal Polarization Separating

He, Yanliang; Ye, Huapeng; Liu, Junmin; Xie, Zhiqiang; Wang, Peipei; Yang, Bo; Zhou, Xinxing; Geo, Yanxia; Chen, Shuqing; Li, Ying; Fan, Dianyuan

Effectively Identifying the Topological Charge and Polarization Order of Arbitrary Singular Light Beams Based on Orthogonal Polarization Separating

ABSTRACT

Singular beams with spatially variant field distributions have various fantastic applications. However, one of the significant challenges that hinder the wide application of singular beams is how to effectively identify the topological charge and the polarization order of arbitrary singular beams. We found that when a light beam with arbitrary polarization state illuminates a polarization-sensitive blazed-grating, the horizontal and vertical component can be separated from the incident beam. Based on this phenomenon, an effective method is proposed to probe the integral topological charge and polarization order of arbitrary singular beams. With this detection method, the vortex beam, cylindrical vector beam and cylindrical vector vortex beam with different topological charges and polarization orders have been experimentally identified. This effective detection method can be widely used to measure the topological charge and polarization order of arbitrary singular beams.


Language English
Journal IEEE photonics journal
Year
2018
Article number 6501208
Volume 8
Issue number
11
Status Published


KEYWORDS

Laser beams, Optical vortices, Optical polarization, Interference, Measurement by laser beam, Optical imaging, Licenses


DOI: 10.1109/JPHOT.2019.2944968

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  • APA
Yanliang He, Huapeng Ye, Junmin Liu, Zhiqiang Xie, Peipei Wang, Bo Yang, Xinxing Zhou, Yanxia Gao, Shuqing Chen, Ying Li, Dianyuan Fan. Effectively identifying the topological charge and polarization order of arbitrary singular light beams based on orthogonal polarization separating. IEEE photonics journal, 2018, 8(11), 6501208.

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