Generation of an optical vortex with a segmented deformable mirror

Abstract

We present a method for the creation of optical vortices by using a deformable mirror. Optical vortices of integer and fractional charge were successfully generated at a wavelength of $633\mathrm{nm}$ and observed in the far field ($2000\mathrm{mm}$). The obtained intensity patterns proved to be in agreement with the theoretical predictions on integer and fractional charge optical vortices. Interference patterns between the created optical vortex carrying beams and a reference plane wave were also produced to verify and confirm the existence of the phase singularities.

© 2008 Optical Society of America

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