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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 2 — Jan. 17, 2011
  • pp: 482–492

High-volume optical vortex multiplexing and de-multiplexing for free-space optical communication

Zhongxi Wang, N. Zhang, and X.-C. Yuan  »View Author Affiliations


Optics Express, Vol. 19, Issue 2, pp. 482-492 (2011)
http://dx.doi.org/10.1364/OE.19.000482


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Abstract

We report an approach to the increase of signal channels in free-space optical communication based on composed optical vortices (OVs). In the encoding process, conventional algorithm employed for the generation of collinearly superimposed OVs is combined with a genetic algorithm to achieve high-volume OV multiplexing. At the receiver end, a novel Dammann vortex grating is used to analyze the multihelix beams with a large number of OVs. We experimentally demonstrate a digitized system which is capable of transmitting and receiving 16 OV channels simultaneously. This system is expected to be compatible with a high-speed OV multiplexing technique, with potentials to extremely high-volume information density in OV communication.

© 2011 OSA

OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(090.1970) Holography : Diffractive optics
(050.4865) Diffraction and gratings : Optical vortices

ToC Category:
Diffraction and Gratings

History
Original Manuscript: October 25, 2010
Revised Manuscript: December 3, 2010
Manuscript Accepted: December 6, 2010
Published: January 3, 2011

Citation
Zhongxi Wang, N. Zhang, and X.-C. Yuan, "High-volume optical vortex multiplexing and de-multiplexing for free-space optical communication," Opt. Express 19, 482-492 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-2-482


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