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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 5 — Feb. 27, 2012
  • pp: 4988–5002

Comparison of optical vortex detection methods for use with a Shack-Hartmann wavefront sensor

Kevin Murphy and Chris Dainty  »View Author Affiliations


Optics Express, Vol. 20, Issue 5, pp. 4988-5002 (2012)
http://dx.doi.org/10.1364/OE.20.004988


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Abstract

In this paper we compare experimentally two methods of detecting optical vortices from Shack-Hartmann wavefront sensor (SHWFS) data, the vortex potential and the contour sum methods. The experimental setup uses a spatial light modulator (SLM) to generate turbulent fields with vortices. In the experiment, many fields are generated and detected by a SHWFS, and data is analysed by the two vortex detection methods. We conclude that the vortex potential method is more successful in locating vortices in these fields.

© 2011 OSA

OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(010.1300) Atmospheric and oceanic optics : Atmospheric propagation
(010.7350) Atmospheric and oceanic optics : Wave-front sensing
(080.4865) Geometric optics : Optical vortices

ToC Category:
Adaptive Optics

History
Original Manuscript: September 22, 2011
Revised Manuscript: November 10, 2011
Manuscript Accepted: November 11, 2011
Published: February 13, 2012

Citation
Kevin Murphy and Chris Dainty, "Comparison of optical vortex detection methods for use with a Shack-Hartmann wavefront sensor," Opt. Express 20, 4988-5002 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-5-4988


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