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

Kevin Murphy, Chris Dainty

Research output: Contribution to journalArticlepeer-review

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.

Original languageEnglish
Pages (from-to)4988-5002
Number of pages15
JournalOptics Express
Volume20
Issue number5
DOIs
Publication statusPublished - 27 Feb 2012
Externally publishedYes

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