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 language | English |
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Pages (from-to) | 4988-5002 |
Number of pages | 15 |
Journal | Optics Express |
Volume | 20 |
Issue number | 5 |
DOIs | |
Publication status | Published - 27 Feb 2012 |
Externally published | Yes |