Generation of photonic orbital angular momentum superposition states using vortex beam emitters with superimposed gratings

An integrated approach to produce photonic orbital angular momentum (OAM) superposition states with arbitrary OAM spectrum has been demonstrated. Superposition states between two vector OAM modes have been achieved by integrating a superimposed angular grating in one silicon micro-ring resonator, wi...

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Bibliographic Details
Published in:Optics express 2016-02, Vol.24 (4), p.3168-3176
Main Authors: Xiao, Qingsheng, Klitis, Charalambos, Li, Shimao, Chen, Yueyang, Cai, Xinlun, Sorel, Marc, Yu, Siyuan
Format: Article
Language:English
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Summary:An integrated approach to produce photonic orbital angular momentum (OAM) superposition states with arbitrary OAM spectrum has been demonstrated. Superposition states between two vector OAM modes have been achieved by integrating a superimposed angular grating in one silicon micro-ring resonator, with each mode having near equal weight. The topological charge difference between the two compositional OAM modes is determined by the difference between the numbers of elements in the two original gratings being superimposed, while the absolute values of the topological charge can be changed synchronously by switching WGM resonant wavelengths. This novel approach provides a scalable and flexible source for the OAM-based quantum information and optical manipulation applications.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.24.003168