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

Xiao, Q., Klitis, C. , Li, S., Chen, Y., Cai, X., Sorel, M. and Yu, S. (2016) Generation of photonic orbital angular momentum superposition states using vortex beam emitters with superimposed gratings. Optics Express, 24(4), pp. 3168-3176. (doi: 10.1364/OE.24.003168) (PMID:26906981)

Abstract

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.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Klitis, Dr Charalambos and Sorel, Professor Marc
• Authors: Xiao, Q., Klitis, C., Li, S., Chen, Y., Cai, X., Sorel, M., and Yu, S.
• Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
• College/School: College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering; College of Science and Engineering > School of Engineering > James Watt Nanofabrication Centre
• Journal Name: Optics Express
• Publisher: Optical Society of America
• ISSN: 1094-4087
• ISSN (Online): 1094-4087
• Copyright Holders: Copyright © 2016 OSA
• First Published: First published in Optics Express 24(4):3168-3176
• Publisher Policy: Reproduced in accordance with the copyright policy of the publisher